Celestron Padded Telescope Bag For 11" OTA's
$ 119.95 - Sold Out
Celestron Padded Telescope Bag For 11" OTA's
Celestron SKU: 94027 | Helix SKU: CT94027
Overview
Still carrying your bulky optical tube box to remote observing sites? Let us lighten your load with our sleek, protective optical tube carrying case, the perfect storage solution for transporting your tube anywhere with ease and confidence. It’s truly a must-have for telescope owners of all stripes.
Ultra-durable Material
The 11" Optical Tube Soft Case is constructed from 900 denier polyester for durability and weather resistance. Its walls are lined with 16mm thick EPE foam to protect your telescope. Unzip the case and you’ll discover a soft polyester interior lining with adjustable straps to hold your optical tube firmly in place.
The 11" Optical Tube Soft Case has a hidden external zipper pocket to hold eyepieces and other accessories. It is designed with cinching straps to firm up the pocket when in use and to hide it when empty.
The interior has one sewn in cinching strap to hold the optical tube firmly in place.
Grab and Go
Transport your case one of two ways: via the pair of sewn in handles or optional, clip in padded shoulder strap for hands-free carrying.
- Store your 11” Schmidt-Cassegrain or EdgeHD optical tube in this protected, portable, grab-and-go case.
- Ultra-durable and water resistant, 900 denier outer and super smooth inner polyester layers, sandwich 16mm thick EPE foam sheets to create a protective barrier for your telescope.
- Multiple zippers allow for easy packing and removal of the optical tube.
- External, hidden zippered pocket stores your eyepieces and other accessories.
- Padded shoulder strap allows you to carry your optical tube to your observing site hands-free
Specifications:
| Outer Material: | 900 Denier Polyester |
| Walls- Foam | EPE Foam (16mm thick) |
| Internal material | PP webbing |
| Zippers: | Nylon Zippers with cord pulls |
| Included Accessories | 3" Celestron window sticker (part of label) | Shoulder strap |
| Compatibility | 11" Celestron Telescsopes: EdgeHD 11" Optical Tube | ALL C11 Optical Tubes |
| Outside Dimensions | 686mm x 381mm x 381mm (27" x 15" x 15") |
| Inside Dimensions | 610mm x 362mm x 362mm (24" x 14.25" x 14.25") |
| Weight | 3.4lbs (1.54kg) |
Celestron Deluxe Case - NexStar 4/5/6 OTAs
$ 309.95 - Sold Out
Celestron Deluxe Case - NexStar 4/5/6 OTAs
Celestron SKU: 94003 | Helix SKU: CT94003
Overview
The optical tube carrying case is designed to safely transport your optical tube from point A to point B. This carrying case can carry your NexStar 4", 5" and 6" optical tubes as well as any Celestron 8" Schmidt Cassegrain/ EdgeHD optical tubes.
The case is EVA molded to protect your telescope with a hard yet flexible shell. Your case also comes with a convenient storage zipper pocket that holds all your telescope's standard accessories with room to expand.
Inside the case includes two dense foam spacers and a built-in compression strap designed to customize the case for each telescope model. This product includes a durable Nylon handle for easy transportation.
Here is what this case is compatible with:
- NexStar SE 4" (mount and OTA)
- NexStar SE 5" (mount and OTA)
- NexStar SE 6" (mount and OTA)
- NexStar Evolution 6" (mount and OTA)
- 8" SCT / EdgeHD (OTA only)
Specifications:
| External Length | 584mm (23") |
| External Width | 381mm (15") |
| External Height | 356mm (14") |
| Internal Length | 483mm (19") |
| Internal Width | 279mm (11") |
| Internal Height | 254mm (10") |
| Foam Padding | 1.5" thick foam padding along all walls and above the accessory pouch |
| Handles | Three carrying handles—Two cloth handles on the top and side and one extension handle for rolling. No handle or grip on the bottom where the wheels are located |
Meade GLASS WHITE-LIGHT SOLAR FILTER #400
$ 169.99
Meade GLASS WHITE-LIGHT SOLAR FILTER #400 - ME629000
Meade’s new glass white-light solar filters are available in 10 different sizes! They are the safe and great way to transform your telescopes in to a safe product for viewing and imaging the sun in white-light! This 4" (101mm) Glass White Solar Filter is compatible with Meade's Infinity 70, Polaris 80, & ETX80 Observer telescopes.
Meade GLASS WHITE-LIGHT SOLAR FILTER #1375
$ 299.99
Meade GLASS WHITE-LIGHT SOLAR FILTER #1375 - ME629009
Meade’s new glass white-light solar filters are the perfect accessory to transform your telescope into a safe way to view the Sun! This 13.75" (349mm) Glass White-Light Solar Filter is compatible with Meade's LX90 12", LX200 12", LX600 12", & LX850 12" telescopes.
Celestron ThermoTorch 3 Black Flashlight/Warm/Charger
$ 59.95 - Sold Out
Celestron ThermoTorch 3 Black Flashlight/Warm/Charger
Celestron Elements ThermoTorch 3 is your must-have outdoor tool. This 3-in-1 device features a 3-mode flashlight, a hand warmer, and a portable power bank for recharging your personal electronics on the go. Whether you use it to light the way while walking your dog or bring it on a week-long backpacking excursion, ThermoTorch 3’s IPX4-rated design will withstand your everyday activities.
The flashlight provides 3 modes of white-light illumination, for a total of 15 hours of light on a single charge. Unlike traditional flashlights, ThermoTorch 3 features an internal lithium battery, so you can recharge it hundreds of times without spending money on batteries.
If your hands get cold, take advantage of the hand warmer function, which provides up to 4 hours of continuous heat. The flashlight and hand warmer can be used simultaneously if desired.
When your mobile devices need an extra boost of power, just plug them into ThermoTorch 3’s 5V-2.1A charging port. ThermoTorch 3 works with any 5V DC device, including smartphones, tablets, action cameras, MP3 players, and more.
If you own multiple Celestron Elements devices, you can connect them to ThermoTorch 3 providing even more power using the C-Link feature. Connecting other Celestron power banks to ThermoTorch 3 can extend the hand warmer’s life to 16 hours.
Whether you’re camping in the back country or simply taking your dog out for an evening walk, the ThermoTorch 3 will keep you going with light, heat, and power. It is a true workhorse of an accessory and an indispensable addition to your adventure pack or emergency kit.
Specifications:
| Functionality | 3-in-1 device: portable power pack, LED flashlight, and hand warmer |
| Battery Type | Rechargeable lithium ion |
| Battery Size | 3550 mAh |
| Battery Life - Hand Warmer function | Up to 4 hours (continuous use based on fully charged battery) |
| Battery Life - Light function | LOW: 15 hours | MED: 10 hours | HIGH: 3.5 hours |
| Battery Life- Warmer & Light function | LOW: 3.2 hours | MED: 2.5 hours | HIGH: 1.5 hours |
| Battery Life - Charging function | iPhone XS (2658 mAh): 1.3 charges | GoPro Hero 7 (1220 mAh): 2.7 charges |
| Hand Warmer Temperature Range | UP TO 113° F (45° C) |
| Hand Warmer Heat modes | On/Off |
| Flashlight Modes | LOW: 60 lumens | MED: 100 lumens | HIGH: 200 lumens |
| Flashlight Bulb | LED |
| LED indicators | (4) Blue- Battery indicator LEDs | (1) Blue- Hand warmer indicator (power button) |
| Auto Charge Feature | Plug into the standard USB port and ThermoTorch will automatically start charging your electronic device. |
| Power Input | Mini USB Connector / 5V 1.8A Max |
| Power Output | 1 Standard 2.0 USB port: 5V- 2.1A (Smart Charge Technology) |
| Input Charge Time | 2 hours |
| C-Link Feature | Yes |
| Ports | 1 Standard 2.0 USB port: 5V- 2.1A (Smart Charge Technology) |
| Environmental Protection Level | IPX4 |
| Ergonomics | Fits ergonomically in your hand ensure full contact when using hand warmer |
| Weight | 10.6 oz (300 g) |
| Dimensions | 155.9mm x 44mm x 44mm (6.14" x 1.74" x 1.74") |
| Included Accessories | Black USB-A to USB mini-A charging cable, instruction sheet |
| California Residents | View Proposition 65 Warning |
Sky-Watcher Virtuoso
$ 375.00 - Sold Out
Sky-Watcher Virtuoso
Sky-Watcher SKU: S11750 | Helix SKU: CTS11750
- 90mm Maksutov-Cassegrain OTA
- 1250mm Focal Length, f/13.9 Focal Ratio
- Camera, Camcorder, Smartphone Mounts
- Motorized Alt-Az Tabletop Mount
- White-Light Front Solar Filter for OTA
- 10 & 20mm Eyepieces, 90° Diagonal
- Solar Finder, 5x24 Finderscope
- Automatic Celestial Tracking
- Panoramic/Time-Lapse Photography
- Automatic Shutter Release Function
Sky-Watcher Skymax 127 AZ-Gti
$ 880.00 - Sold Out
Sky-Watcher Skymax 127 AZ-Gti
Sky-Watcher SKU: S21130 | Helix SKU: CTS21130
Perfect for any Situation
Sky-Watcher’s AZ-GTi is the perfect tracking platform for those seeking a compact travel mount capable of both Alt-Az Go-To alignment and video timelapse. Boasting a payload capacity of 11lbs, this modular AZ mount can support anything from a small Maksutov or refractor, to a mid-sized DSLR for timelapse photography. Weighing just 8.6 lbs, the AZ-GTi is the ideal travel mount, easily fitting in carry-on luggage and perfect for grab-and-go situations.
Revolutionary WiFi Control
The AZ-GTi is one of the first Sky-Watcher products featuring built in WiFi control. Once connected to the mount, use Sky-Watcher’s SynScan Pro app to align the mount for celestial tracking or the SynScan PTZ app for timelapse photography.
Easy Integration with any Tripod
The AZ-GTi includes an adjustable aluminium tripod with built in pier extension. The mount can attach to a tripod using a 3.8”-16 thread and includes an adapter for ¼”-20 thread sizes, making it capable of mounting to nearly any tripod.
Automatic Shutter Release Control
No need for an intervelometer timer with the AZ-GTi! With a 60-second preset exposure setting, the AZ-GTi can trigger a DSLR using the auxiliary shutter release cable. Once the camera is plugged into the mount and a shot is fired, it will continually shoot 60 second exposures until the cable is removed.
The 127mm OTA comes with a red dot finder, 1¼ inch diagonal and Super 10 and 25mm eyepieces.
The AZ-GTi come with the mount head, pier extension and tripod.
- 127mm Maksutov-Cassegrain optical tube
- Multi-purpose alt-azimuth mount
- Adjustable height aluminum tripod with 1.25” legs
- 11 pound payload capacity
- SynScan Go To telescope mount with 42,900 object+ database
- Built-in WiFi
- Controlled with SynScan Pro app for iOS and Android
- Freedom Find dual encoder technology
- DC operation (batteries not included)
Sky-Watcher Skymax 102 AZ-Gti
$ 680.00 - Sold Out
Sky-Watcher Skymax 102 AZ-Gti
Sky-Watcher SKU: S21120 | Helix SKU: CTS21120
Perfect for any Situation
Sky-Watcher’s AZ-GTi is the perfect tracking platform for those seeking a compact travel mount capable of both Alt-Az Go-To alignment and video timelapse. Boasting a payload capacity of 11lbs, this modular AZ mount can support anything from a small Maksutov or refractor, to a mid-sized DSLR for timelapse photography. Weighing just 8.6 lbs, the AZ-GTi is the ideal travel mount, easily fitting in carry-on luggage and perfect for grab-and-go situations.
Revolutionary WiFi Control
The AZ-GTi is one of the first Sky-Watcher products featuring built in WiFi control. Once connected to the mount, use Sky-Watcher’s SynScan Pro app to align the mount for celestial tracking or the SynScan PTZ app for timelapse photography.
Easy Integration with any Tripod
The AZ-GTi includes an adjustable aluminium tripod with built in pier extension. The mount can attach to a tripod using a 3.8”-16 thread and includes an adapter for ¼”-20 thread sizes, making it capable of mounting to nearly any tripod.
Automatic Shutter Release Control
No need for an intervelometer timer with the AZ-GTi! With a 60-second preset exposure setting, the AZ-GTi can trigger a DSLR using the auxiliary shutter release cable. Once the camera is plugged into the mount and a shot is fired, it will continually shoot 60 second exposures until the cable is removed.
The 102mm OTA comes with a red dot finder, 1¼ inch diagonal and Super 10 and 25mm eyepieces.
The AZ-GTi come with the mount head, pier extension and tripod.
- 102mm Maksutov-Cassegrain optical tube
- Multi-purpose alt-azimuth mount
- Adjustable height aluminum tripod with 1.25” legs
- 11 pound payload capacity
- SynScan Go To telescope mount with 42,900 object+ database
- Built-in WiFi
- Controlled with SynScan Pro app for iOS and Android
- Freedom Find dual encoder technology
- DC operation (batteries not included)
Sky-Watcher AZ-EQ5 Mount
$ 1,900.00 - Sold Out
Sky-Watcher AZ-EQ5 Mount
Sky-Watcher SKU: S30200 | Helix SKU: CTS30200
Versatile, Lightweight and Astonishingly Accurate
Our AZ-EQ5 hybrid mount epitomizes Sky-Watcher’s commitment to innovation. Part AZ mount, part equatorial, the AZ-EQ5 is Sky-Watcher’s most versatile mount, capable of aligning in either Alt-Az, Equatorial or dual-OTA mode. Thanks to it’s flexibility, the AZ-EQ5 mount is perfect for the beginning astronomer looking to get into astrophotography, the seasoned astrophotography buff or educators passionate about astronomy outreach.
Unlike Any Other Mount on the Market
Unique to Sky-Watcher’s AZ-EQ5 is a patented dual-encoder motor system, Freedom-Find™, which allows users to move the mount manually without losing alignment. While most mounts lose their alignment once moved by hand, the AZ-EQ5 uses a proprietary slip clutch system that keeps your alignment whether you slew by hand or using the hand controller. After moving to the new object (electronically or manually), the mount will start tracking automatically.
42,000 Object Database
Using our proprietary SynScan hand controller, the AZ-EQ5 provides a user-friendly interface with automatic slewing to over 42,000 objects in the night sky. The hand controller can also connect to a computer using the supplied RS232 cable (USB adapter available), enabling computer control with most astronomy programs, including The SkyX, Stellarium, and Starry Night.
Whisper Quiet Motors
Sky-Watcher’s belt drive system has a few advantages over mounts using traditional stepper gearing. Belt drive systems deliver nearly silent slewing and tracking, making for an evening free of obnoxious motor noises while delivering spot on accuracy. Sky-Watcher’s belt drive also features minimal backlash, smoother tracking, and less periodic error than mounts using servo motors. For users looking to improve the accuracy of their tracking, the AZ-EQ5 also features built in Periodic Error Correction firmware, allowing users to fix periodic error in the field.
Periodic Error Correction Made Easy!
For the astrophotographers looking to reduce Periodic Error, the SynScan hand controller has built in PEC training that can be configured while in the field! Periodic Error is best described as tiny back-and-forth oscillations of target stars. This motion is not notable during visual observation, but during a long photographic exposure, can turn pinpoint stars to small streaks. Using Sky-Watcher’s built-in PEC training, astrophotographers can cut down on the problems caused by Periodic Error to get smoother tracking and better performance from an autoguider.
A Photographer’s Best Friend
The AZ-EQ5 mount has built in DSLR interface with the ability to control two cameras at once. Using a built in intervelometer timer, the SynScan hand controller can setup exposure length, number of frames taken and a ‘cool down’ period between each frame. Additionally, the SynScan hand controller has the ability to select up to 8 different exposure combinations. No need to purchase an expensive cable release when Sky-Watcher includes everything you’ll need to start shooting deep sky objects out of the box.
Use at Any Latitude
Thanks to the pier extension that sits between the mount head and tripod, the AZ-EQ5 can be polar aligned at almost any latitude. Most equatorial mounts have difficulty with polar alignment at lower latitudes due to the counterweight bar interfering with the tripod. The AZ-EQ5 bypasses this completely, using a beefy pier extension to elevate the mount head away from the tripod legs. The pier extension creates enough clearance between the counterweight bar and tripod legs that the mount can be polar aligned at virtually any latitude, from Alaska to Ecuador to Tierra del Fuego.
Ready to Go, Out of the Box!
While most mounts leave you high and dry to purchase accessories on your own, Sky-Watcher includes plenty of accessories to get you started. In addition to the SynScan hand controller and the pier tripod, the AZ-EQ5 mount comes with two 7.5lb counterweights and a counterweight extension bar, as well as an extra saddle for mounting a second scope for viewing in dual-OTA mode. The mount also includes two Canon EOS trigger cables for connecting your camera to the mount (Nikon and Sony cables available separate). A polar finderscope is also included to assist with setup. The AZ-EQ5 has a built in USB port for firmware updates, but also allows computer control using various astronomy software.
- German Equatorial/Alt-Az/dual-OTA mode.
- Permanent periodic error correction (PPEC).
- Belt drive – Super smooth PE curve. Low backlash, silent slewing.
- +/- 5 arc seconds native periodic error.
- Dual shutter release control for batch exposures of astrophotography.
- Motor controller with high torque and accuracy.
- Includes two V-style saddles for mounting dual OTAs
- Secure-fit power supply connections.
- Polar alignment with optional polarscope.
- Dual Encoders
- Counterweight extension bar included.
- Retractable counterweight bar.
Specifications:
| SKU | S30200 |
| UPC | 50234302005 |
| General Mount Info | |
|---|---|
| Mount Type | Alt-AZ/EQ |
| GoTo | Yes |
| Payload Capacity (lbs) | 30 |
| Mount Height (Min) | 41" |
| Mount Height (Max) | 48.7" |
| Mount Head Weight (lbs) | 16.9 |
| Tripod Weight (lbs) | 13.4 |
| Fully Assembled Weight (w/ weights) | 43.8 |
| Tripod Leg Diameter | 1.75" |
| Mounting Saddle Type | V |
| Power Type | 12V |
| Clutch | Slip |
| Polar Scope | Optional |
| Latitude Range (degrees) | 0-90 |
| Computer/Drive System Info | |
| Object Database | 42900+ |
| Controller | Hand Controller |
| WiFi | Optional WiFi dongle |
| Polar Align Assist | Yes |
| PC Direct Connect Port | Yes |
| Auto Guide | Yes |
| Permanent Periodic Correction | Yes |
| Pointing Accuracy (RMS) | 5 arc minutes |
| Dual Encoders | Yes |
| DSLR Enterface | Yes (Dual) |
| Included Weights | 7.5lbs (two) |
| Motor Type | Stepper |
| Drive System | Belt |
Sky-Watcher HEQ5 Mount
$ 1,475.00 - Sold Out
Sky-Watcher HEQ5 Mount
Sky-Watcher SKU: S30400 | Helix SKU: CTS30400
Sky-Watcher SynScan mounts have been designed for use by novices and experts alike. These mounts provide extremely high precision tracking and have built in autoguider ports. This heavy-duty HEQ5 Pro mount is a smaller version of the sturdy EQ6 Pro mount. It is specially designed for observers who need the steadiness of the EQ6 Pro mount but finds the EQ6 Pro mount too physically demanding.
For novice users the user-friendly menu allows automatic slewing to 42900+ objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The SynScan Hand Control also has the ability to connect to a computer via an RS-232 cable. Once the connection has been established between the computer and SynScan Hand Control, many commercially available planetarium software programs can be used to control the HEQ5 PRO Mounts, They also come with features that advanced astronomers can appreciate.
- HEQ5 GoTo equatorial head
- Adjustable 1.75" diameter rolled steel tripod
- SynScan GoTo telescope mount wit 42,900+ object database
- Metal accessory tray
- V-style dovetail saddle
- SynScan V5 hand controller
- 30lbs payload capacity
Sky-Watcher EQ8-Rh Mount Head Only with Counterweights
$ 9,475.00 - Sold Out
Sky-Watcher EQ8-Rh Mount Head Only with Counterweights
Sky-Watcher SKU: S30712 | Helix SKU: CTS30712
Building on the legacy of Sky-Watcher’s popular EQ8 mount, the EQ8-Rh introduces a variety of upgrades and enhancements that make observatory-class astrophotography easier than ever.
Whisper-quiet dual belt drives greatly reduce Periodic Error while providing enhanced tracking and guiding. The fully realized cable management system eliminates cable drag and makes remote set-ups ridiculously convenient.
The EQ8-Rh features an on-axis Renishaw 11.8 million tick incremental encoder on the RA axis, virtually eliminating Periodic Error during tracking and allowing for extremely precise guiding for even the most demanding astrophotographers.
110-pound (50 kg) Payload
All-metal precision internal construction makes this mount strong and stable. The EQ8-R is a perfect fit for even the largest OTAs Sky-Watcher has to offer.
Belt-drive On Both Axes
Belt drives provide minimal backlash and significantly reduced periodic error, which mean smoother, more accurate tracking.
Integrated Cable Management System
Built-in USB 3.0, power, and serial ports eliminate cable drag and reduces the worry of cable snags
On-axis Renishaw Encoder
A Renishaw incremental 11.8 million tick encoder is installed on the RA axis of the EQ8-Rh virtually eliminating Periodic Error
Pier Tripod NOT included
| SKU | S30712 |
| UPC | 050234307123 |
| General Mount Info | |
|---|---|
| Mount Type | High-capacity motorized equatorial (EQ) |
| GoTo | Yes |
| Payload Capacity (lbs) | 110 |
| Mount Head Height (head by itself) | 19.5" |
| Mount Head Weight (lbs) | 56.8" |
| Mounting Saddle Type | D-style |
| Power Type | DC11~16V, 3 amp |
| Cable management | Four USB 3.0 ports, Three 2.1mm power ports, Three serial connections |
| Polar Scope | Sold seperately |
| Latitude Range (degrees) | 10° to 65° |
| Computer/Drive System Info | |
| Object Database | Complete Messier, NGC, IC and SAO catalogs, 25 user defined objects, total 42,900 objects |
| Controller | SynScan hand controller, flash upgradeable, or PC direct |
| Alignment Procedures | One-, two- and three-star alignment |
| Slew Speeds | 1000x, 800x, 600x, 400x, 200x, 32x, 16x, 8x, 2x, 1x |
| WiFi | Optional WiFi dongle |
| GPS | Optional SynScan GPS sold seperately |
| PC Direct Connect Port | Yes |
| Included Weights | 22lbs (two) |
| Motor Type | 0.9° hybrid stepper motor |
| Drive System | Belt |
Sky-Watcher EQ8-Rh Mount with Pier Tripod
$ 10,500.00 - Sold Out
Sky-Watcher EQ8-Rh Mount with Pier Tripod
Sky-Watcher SKU: S30701 | Helix SKU: CTS30701
Building on the legacy of Sky-Watcher’s popular EQ8 mount, the EQ8-Rh introduces a variety of upgrades and enhancements that make observatory-class astrophotography easier than ever.
Whisper-quiet dual belt drives greatly reduce Periodic Error while providing enhanced tracking and guiding. The fully realized cable management system eliminates cable drag and makes remote set-ups ridiculously convenient.
The EQ8-Rh features an on-axis Renishaw 11.8 million tick incremental encoder on the RA axis, virtually eliminating Periodic Error during tracking and allowing for extremely precise guiding for even the most demanding astrophotographers.
All-metal precision internal construction makes this mount strong and stable. The EQ8-R is a perfect fit for even the largest OTAs Sky-Watcher has to offer.
Belt-drive On Both AxesBelt drives provide minimal backlash and significantly reduced periodic error, which mean smoother, more accurate tracking.
Integrated Cable Management SystemBuilt-in USB 3.0, power, and serial ports eliminate cable drag and reduces the worry of cable snags
On-axis Renishaw EncoderA Renishaw incremental 11.8 million tick encoder is installed on the RA axis of the EQ8-Rh virtually eliminating Periodic Error
Specifications:
| SKU | S30701 |
| UPC | 050234307017 |
| General Mount Info | |
|---|---|
| Mount Type | High-capacity motorized equatorial (EQ) |
| Tripod | Heavy-duty pier tripod |
| GoTo | Yes |
| Payload Capacity (lbs) | 110 |
| Mount Head Height (head by itself) | 19.5" |
| Mount Head Weight (lbs) | 56.8" |
| Mount with Tripod max height | 58.625" |
| Mount with Tripod min height | 49.75" |
| Tripod max height (no mount head) | 39.125" |
| Tripod min height (no mount head) | 30.25" |
| Tripod leveling pads min height | 4" |
| Tripod Weight (lbs) | 64.8 |
| Tripod Leg Diameter | 2.36" |
| Mounting Saddle Type | D-style |
| Power Type | DC11~16V, 3 amp |
| Cable management | Four USB 3.0 ports, Three 2.1mm power ports, Three serial connections |
| Polar Scope | Sold seperately |
| Latitude Range (degrees) | 10° to 65° |
| Computer/Drive System Info | |
| Object Database | Complete Messier, NGC, IC and SAO catalogs, 25 user defined objects, total 42,900 objects |
| Controller | SynScan hand controller, flash upgradeable, or PC direct |
| Alignment Procedures | One-, two- and three-star alignment |
| Slew Speeds | 1000x, 800x, 600x, 400x, 200x, 32x, 16x, 8x, 2x, 1x |
| WiFi | Optional WiFi dongle |
| GPS | Optional SynScan GPS sold seperately |
| PC Direct Connect Port | Yes |
| Included Weights | 22lbs (two) |
| Motor Type | 0.9° hybrid stepper motor |
| Drive System | Belt |
Sky-Watcher EQ8-R Mount Head Only with Counterweights
$ 5,300.00 - Sold Out
Sky-Watcher EQ8-R Mount Head Only with Counterweights
Sky-Watcher SKU: S30612 | Helix SKU: CTS30612
Building on the legacy of Sky-Watcher’s popular EQ8 mount, the EQ8-R introduces a variety of upgrades and enhancements that make observatory-class astrophotography easier than ever.
Whisper-quiet dual belt drives greatly reduce Periodic Error while providing enhanced tracking and guiding. The fully realized cable management system eliminates cable drag and makes remote set-ups ridiculously convenient.
All-metal precision internal construction makes this mount strong and stable. The EQ8-R is a perfect fit for even the largest OTAs Sky-Watcher has to offer.
Belt-drive On Both AxesBelt drives provide minimal backlash and significantly reduced periodic error, which mean smoother, more accurate tracking.
Integrated Cable Management SystemBuilt-in USB 3.0, power, and serial ports eliminate cable drag and reduces the worry of cable snags
Pier Tripod NOT includedSpecifications:
| SKU | S30612 |
| UPC | 050234306126 |
| General Mount Info | |
|---|---|
| Mount Type | High-capacity motorized equatorial (EQ) |
| GoTo | Yes |
| Payload Capacity (lbs) | 110 |
| Mount Head Height (head by itself) | 19.5" |
| Mount Head Weight (lbs) | 56.8" |
| Mounting Saddle Type | D-style |
| Power Type | DC11~16V, 3 amp |
| Cable management | Four USB 3.0 ports, Three 2.1mm power ports, Three serial connections |
| Polar Scope | Sold seperately |
| Latitude Range (degrees) | 10° to 65° |
| Computer/Drive System Info | |
| Object Database | Complete Messier, NGC, IC and SAO catalogs, 25 user defined objects, total 42,900 objects |
| Controller | SynScan hand controller, flash upgradeable, or PC direct |
| Alignment Procedures | One-, two- and three-star alignment |
| Slew Speeds | 1000x, 800x, 600x, 400x, 200x, 32x, 16x, 8x, 2x, 1x |
| WiFi | Optional WiFi dongle |
| GPS | Optional SynScan GPS sold seperately |
| PC Direct Connect Port | Yes |
| Included Weights | 22lbs (two) |
| Motor Type | 0.9° hybrid stepper motor |
| Drive System | Belt |
Sky-Watcher EQ8-R Mount with Pier Tripod
$ 6,350.00 - Sold Out
Sky-Watcher EQ8-R Mount with Pier Tripod
Sky-Watcher SKU: S30601 | Helix SKU: CTS30601
Building on the legacy of Sky-Watcher’s popular EQ8 mount, the EQ8-R introduces a variety of upgrades and enhancements that make observatory-class astrophotography easier than ever.
Whisper-quiet dual belt drives greatly reduce Periodic Error while providing enhanced tracking and guiding. The fully realized cable management system eliminates cable drag and makes remote set-ups ridiculously convenient.
All-metal precision internal construction makes this mount strong and stable. The EQ8-R is a perfect fit for even the largest OTAs Sky-Watcher has to offer.
Belt-drive On Both AxesBelt drives provide minimal backlash and significantly reduced periodic error, which mean smoother, more accurate tracking.
Integrated Cable Management SystemBuilt-in USB 3.0, power, and serial ports eliminate cable drag and reduces the worry of cable snags
| SKU | S30601 |
| UPC | 050234306010 |
| General Mount Info | |
|---|---|
| Mount Type | High-capacity motorized equatorial (EQ) |
| Tripod | Heavy-duty pier tripod |
| GoTo | Yes |
| Payload Capacity (lbs) | 110 |
| Mount Head Height (head by itself) | 19.5" |
| Mount Head Weight (lbs) | 56.8" |
| Mount with Tripod max height | 58.625" |
| Mount with Tripod min height | 49.75" |
| Tripod max height (no mount head) | 39.125" |
| Tripod min height (no mount head) | 30.25" |
| Tripod leveling pads min height | 4" |
| Tripod Weight (lbs) | 64.8 |
| Tripod Leg Diameter | 2.36" |
| Mounting Saddle Type | D-style |
| Power Type | DC11~16V, 3 amp |
| Cable management | Four USB 3.0 ports, Three 2.1mm power ports, Three serial connections |
| Polar Scope | Sold seperately |
| Latitude Range (degrees) | 10° to 65° |
| Computer/Drive System Info | |
| Object Database | Complete Messier, NGC, IC and SAO catalogs, 25 user defined objects, total 42,900 objects |
| Controller | SynScan hand controller, flash upgradeable, or PC direct |
| Alignment Procedures | One-, two- and three-star alignment |
| Slew Speeds | 1000x, 800x, 600x, 400x, 200x, 32x, 16x, 8x, 2x, 1x |
| WiFi | Optional WiFi dongle |
| GPS | Optional SynScan GPS sold seperately |
| PC Direct Connect Port | Yes |
| Included Weights | 22lbs (two) |
| Motor Type | 0.9° hybrid stepper motor |
| Drive System | Belt |
Sky-Watcher Stargate 500P SynScan Truss-Tube GoTo Dobsonian Telescope
$ 7,999.00 - Sold Out
Sky-Watcher Stargate 450P SynScan Truss-Tube GoTo Dobsonian Telescope
Sky-Watcher SKU: S11930 | Helix SKU: CTS11930
Stargate's feature Sky-Watcher’s exclusive fused conical parabolic mirrors. The fused design allows for thinner mirror construction that provides faster cooling and lighter weight.
Combined with the cast cellular secondary mirror and Sky-Watcher’s exclusive 94% reflectivity coatings, Stargate delivers bright, detailed views of your favorite deep sky objects. The 18 inch model captures 27% more light than our 16 inch, while the 20 inch (a full half meter of aperture) boasts a monster 56% more light gathering power.
Solid foundations, easy assembly
The minimalist all-metal structure of the Stargate produces a sturdy and stable platform while maintaining a convenient and compact footprint. The truss-tubes break down to a very manageable 36 inch length for easy transport. Azimuth and altitude bearings are steel and Teflon for smooth, steady movement.
Setting up a Stargate is a simple procedure, taking only about 20 minutes. Spring loaded truss anchor points are clearly labeled to eliminate any frustration or confusion. Adjustable feet make leveling a snap.
Synscan puts the universe in your hands
Our GoTo line of Stargates provide motorized operation in both alt and azimuth axes. Featuring Sky-Watcher’s proprietary SynScan hand controller, your scope now automatically slews to and tracks over 42,900 celestial objects from the on-board database.
Sky-Watcher’s Freedom Find™ dual-encoder technology ensures accurate tracking while allowing you to move the telescope manually in either axis without compromising alignment. This provides a level of convenience and flexibility not available in telescopes without dual encoders.
- Fused conical primary mirror
- Cellular secondary mirror
- Dual speed 2” Crayford focuser
- Two section truss poles (compact transport)
- Minimalist, all metal construction
- Fast f/3.95 optics for short eyepiece heights
- 20” provides 56% more light than a 16” telescope
- 94% reflectivity coatings
- Freedom Find, dual encoders
- SynScan with 42,000+ object database
Specifications:
| SKU | S11930 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 508 |
| F/Ratio | 3.93 |
| Focal Length (mm) | 2000 |
| Secondary Diameter | 134mm |
| Secondary Obstruction (by diameter) | 26% |
| Secondary Obstruction by Area | 7% |
| Observational Info | |
| Dawes Limit | 0.23 |
| Rayleigh Limit | 0.28 |
| Limiting Mag. | 16 |
| Minimum Magnification | 72 |
| Maximum Magnification | 1000 |
| Light Gathering (compared to next size down) | 23% |
| General Info | |
| GoTo | Yes |
| Object Database | 42,900+ |
| Dual Encoders | Yes |
| Focuser | 2" Dual Speed Crayford |
| Zenith Eyepiece Height | 79" |
| Dob Base Weight | 66 lbs |
| Upper Cage Weight | 12 lbs |
| Truss Pole Weight | 2.6 lbs each. 16 lbs total |
| Mirror Box Weight | 70 lbs |
| Full Assembled Weight (with weights) | 164 lbs |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 28 LET/10mm/Coll. |
| Magnification w/ Included Eyepieces | 71x/200x |
| Included Case | No |
| Corrector | No |
| Other Included Accessories | 2.3lbs counter weights (3), Shroud, Truss clamps |
Sky-Watcher Stargate 450P SynScan Truss-Tube GoTo Dobsonian Telescope
$ 6,999.00 - Sold Out
Sky-Watcher Stargate 450P SynScan Truss-Tube GoTo Dobsonian Telescope
Sky-Watcher SKU: S11920 | Helix SKU: CTS11920
Stargate's feature Sky-Watcher’s exclusive fused conical parabolic mirrors. The fused design allows for thinner mirror construction that provides faster cooling and lighter weight.
Combined with the cast cellular secondary mirror and Sky-Watcher’s exclusive 94% reflectivity coatings, Stargate delivers bright, detailed views of your favorite deep sky objects. The 18 inch model captures 27% more light than our 16 inch, while the 20 inch (a full half meter of aperture) boasts a monster 56% more light gathering power.
Solid foundations, easy assembly
The minimalist all-metal structure of the Stargate produces a sturdy and stable platform while maintaining a convenient and compact footprint. The truss-tubes break down to a very manageable 36 inch length for easy transport. Azimuth and altitude bearings are steel and Teflon for smooth, steady movement.
Setting up a Stargate is a simple procedure, taking only about 20 minutes. Spring loaded truss anchor points are clearly labeled to eliminate any frustration or confusion. Adjustable feet make leveling a snap.
Synscan puts the universe in your hands
Our GoTo line of Stargates provide motorized operation in both alt and azimuth axes. Featuring Sky-Watcher’s proprietary SynScan hand controller, your scope now automatically slews to and tracks over 42,900 celestial objects from the on-board database.
Sky-Watcher’s Freedom Find™ dual-encoder technology ensures accurate tracking while allowing you to move the telescope manually in either axis without compromising alignment. This provides a level of convenience and flexibility not available in telescopes without dual encoders.
Specifications:
| SKU | S11920 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 458 |
| F/Ratio | 4.14 |
| Focal Length (mm) | 1900 |
| Secondary Diameter | 120mm |
| Secondary Obstruction (by diameter) | 26% |
| Secondary Obstruction by Area | 7% |
| Observational Info | |
| Dawes Limit | 0.25 |
| Rayleigh Limit | 0.31 |
| Limiting Mag. | 15.9 |
| Minimum Magnification | 65 |
| Maximum Magnification | 902 |
| Light Gathering (compared to next size down) | 27% |
| General Info | |
| GoTo | Yes |
| Object Database | 42,900+ |
| Dual Encoders | Yes |
| Focuser | 2" Dual Speed Crayford |
| Zenith Eyepiece Height | 74.5" |
| OTA Length (Retract/Ext.) | 78.75" |
| OTA Outer Diameter | 20.5" |
| Dob Base Weight | 66 lbs |
| Upper Cage Weight | 11 lbs |
| Truss Pole Weight | 2.6 lbs each. 16 lbs total |
| Mirror Box Weight | 62 lbs |
| Full Assembled Weight (with weights) | 155 lbs |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 28 LET/10mm/Coll. |
| Other Included Accessories | 2.3lbs counter weights (3), Shroud, Truss clamps |
Sky-Watcher Stargate 500P Truss-Tube Dobsonian Telescope
$ 6,999.00 - Sold Out
Sky-Watcher Stargate 500P Truss-Tube Dobsonian Telescope
Sky-Watcher SKU: S11910 | Helix SKU: CTS11910
Stargate's feature Sky-Watcher’s exclusive fused conical parabolic mirrors. The fused design allows for thinner mirror construction that provides faster cooling and lighter weight.
Combined with the cast cellular secondary mirror and Sky-Watcher’s exclusive 94% reflectivity coatings, Stargate delivers bright, detailed views of your favorite deep sky objects. The 18 inch model captures 27% more light than our 16 inch, while the 20 inch (a full half meter of aperture) boasts a monster 56% more light gathering power.
Solid foundations, easy assembly
The minimalist all-metal structure of the Stargate produces a sturdy and stable platform while maintaining a convenient and compact footprint. The truss-tubes break down to a very manageable 36 inch length for easy transport. Azimuth and altitude bearings are steel and Teflon for smooth, steady movement.
Setting up a Stargate is a simple procedure, taking only about 20 minutes. Spring loaded truss anchor points are clearly labeled to eliminate any frustration or confusion. Adjustable feet make leveling a snap.
Specifications:
| SKU | S11910 |
| UPC | 050234119108 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 508 |
| F/Ratio | 3.93 |
| Focal Length (mm) | 2000 |
| Secondary Diameter | 134mm |
| Secondary Obstruction (by diameter) | 26% |
| Secondary Obstruction by Area | 7% |
| Observational Info | |
| Dawes Limit | 0.23 |
| Rayleigh Limit | 0.28 |
| Limiting Mag. | 16 |
| Minimum Magnification | 72 |
| Maximum Magnification | 1000 |
| Light Gathering (compared to next size down) | 23% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| Zenith Eyepiece Height | 79" |
| Dob Base Weight | 40 lbs |
| Upper Cage Weight | 12 lbs |
| Truss Pole Weight | 2.6 lbs each. 16 lbs total |
| Mirror Box Weight | 70 lbs |
| Full Assembled Weight (with weights) | 138 lbs |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 28 LET/10mm/Coll. |
| Magnification w/ Included Eyepieces | 71x/200x |
| Included Case | No |
| Corrector | No |
| Other Included Accessories | 2.3lbs counter weights (3), Shroud, Truss clamps |
Sky-Watcher Stargate 450P Truss-Tube Dobsonian Telescope
$ 5,999.00 - Sold Out
Sky-Watcher Stargate 450P Truss-Tube Dobsonian Telescope
Sky-Watcher SKU: S11900 | Helix SKU: CTS11900
Stargate's feature Sky-Watcher’s exclusive fused conical parabolic mirrors. The fused design allows for thinner mirror construction that provides faster cooling and lighter weight.
Combined with the cast cellular secondary mirror and Sky-Watcher’s exclusive 94% reflectivity coatings, Stargate delivers bright, detailed views of your favorite deep sky objects. The 18 inch model captures 27% more light than our 16 inch, while the 20 inch (a full half meter of aperture) boasts a monster 56% more light gathering power.
Solid foundations, easy assembly
The minimalist all-metal structure of the Stargate produces a sturdy and stable platform while maintaining a convenient and compact footprint. The truss-tubes break down to a very manageable 36 inch length for easy transport. Azimuth and altitude bearings are steel and Teflon for smooth, steady movement.
Setting up a Stargate is a simple procedure, taking only about 20 minutes. Spring loaded truss anchor points are clearly labeled to eliminate any frustration or confusion. Adjustable feet make leveling a snap.
- Fused conical primary mirror
- Cellular secondary mirror
- Dual speed 2” Crayford focuser
- Two section truss poles (compact transport)
- Minimalist, all metal construction
- Fast f/4.1 optics for short eyepiece heights
- 18” provides 27% more light than a 16” telescope
- 94% reflectivity coatings
Specifications:
| SKU | S11900 |
| UPC | 050234119009 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 458 |
| F/Ratio | 4.14 |
| Focal Length (mm) | 1900 |
| Secondary Diameter | 120mm |
| Secondary Obstruction (by diameter) | 26% |
| Secondary Obstruction by Area | 7% |
| Observational Info | |
| Dawes Limit | 0.25 |
| Rayleigh Limit | 0.31 |
| Limiting Mag. | 15.9 |
| Minimum Magnification | 65 |
| Maximum Magnification | 902 |
| Light Gathering (compared to next size down) | 27% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| Zenith Eyepiece Height | 74.5" |
| OTA Length (Retract/Ext.) | 78.75" |
| OTA Outer Diameter | 20.5" |
| Dob Base Weight | 40 lbs |
| Upper Cage Weight | 11 lbs |
| Truss Pole Weight | 2.6 lbs each. 16 lbs total |
| Mirror Box Weight | 62 lbs |
| Full Assembled Weight (with weights) | 129 lbs |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 28 LET/10mm/Coll. |
| Magnification w/ Included Eyepieces | 68x/190x |
| Included Case | No |
| Corrector | No |
| Other Included Accessories | 2.3lbs counter weights (3), Shroud, Truss clamps |
Sky-Watcher Flextube 400P SynScan GoTo Collapsible Dobsonian Telescope
$ 4,680.00 - Sold Out
Sky-Watcher Flextube 400P SynScan GoTo Collapsible Dobsonian Telescope
Sky-Watcher SKU: S11840 | Helix SKU: CTS11840
The exciting new Sky-Watcher Dobsonian SynScan series is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance.
The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Flextube Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards. The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900 objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment! The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.
SynScan™ AZ hand control SPECIFICATIONS:
- Built-in WiFi control
- Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
- Motor type: DC Servo Motors,
- Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
- Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
- Tracking Rates: Sidereal, Lunar, Solar
- Tracking Mode: Dual Axes Tracking
- Alignment Method: Brightest-Star Alignment, Two-Star Alignment
- Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
- Go-To Pointing Accuracy: Up to 5 arc min
| SKU | S11840 |
| UPC | 050234118408 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 406 |
| F/Ratio | 4.4 |
| Focal Length (mm) | 1800 |
| Secondary Diameter | 102mm |
| Secondary Obstruction (by diameter) | 25% |
| Secondary Obstruction by Area | 6% |
| Observational Info | |
| Dawes Limit | 0.29 |
| Rayleigh Limit | 0.34 |
| Limiting Mag. | 15.5 |
| Minimum Magnification | 58 |
| Maximum Magnification | 799 |
| Light Gathering (compared to next size down) | 30% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 42.5"/66.5" |
| OTA Outer Diameter | 17.875" |
| OTA Weight (with accessories) | 72 |
| Dob Base Weight | 105 |
| Dob Base Measurements | 36"x34" |
| Zenith Eyepiece Height | 74" |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Plossl |
| Magnification w/ Included Eyepieces | 72x/180x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Flextube 350P SynScan GoTo Collapsible Dobsonian Telescope
$ 3,615.00 - Sold Out
Sky-Watcher Flextube 350P SynScan GoTo Collapsible Dobsonian Telescope
Sky-Watcher SKU: S11830 | Helix SKU: CTS11830
The exciting new Sky-Watcher Dobsonian SynScan series is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance.
The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Flextube Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards. The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900 objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment! The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.
SynScan™ AZ hand control SPECIFICATIONS:
- Built-in WiFi control
- Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
- Motor type: DC Servo Motors,
- Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
- Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
- Tracking Rates: Sidereal, Lunar, Solar
- Tracking Mode: Dual Axes Tracking
- Alignment Method: Brightest-Star Alignment, Two-Star Alignment
- Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
- Go-To Pointing Accuracy: Up to 5 arc min
Specifications:
| SKU | S11830 |
| UPC | 050234118309 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 356 |
| F/Ratio | 4.6 |
| Focal Length (mm) | 1650 |
| Secondary Diameter | 83mm |
| Secondary Obstruction (by diameter) | 23% |
| Secondary Obstruction by Area | 5% |
| Observational Info | |
| Dawes Limit | 0.33 |
| Rayleigh Limit | 0.39 |
| Limiting Mag. | 15.2 |
| Minimum Magnification | 50 |
| Maximum Magnification | 701 |
| Light Gathering (compared to next size down) | 36% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 38.5"/60" |
| OTA Outer Diameter | 16.5625" |
| OTA Weight (with accessories) | 53 |
| Dob Base Weight | 94 |
| Dob Base Measurements | 36"x31" |
| Zenith Eyepiece Height | 64" |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Plossl |
| Magnification w/ Included Eyepieces | 66x/165x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Flextube 300P SynScan GoTo Collapsible Dobsonian Telescope
$ 2,560.00 - Sold Out
Sky-Watcher Flextube 300P SynScan GoTo Collapsible Dobsonian Telescope
Sky-Watcher SKU: S11820 | Helix SKU: CTS11820
The exciting new Sky-Watcher Dobsonian SynScan series is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance.
The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Flextube Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards. The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900 objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment! The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.
SynScan™ AZ hand control SPECIFICATIONS:- Built-in WiFi control
- Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
- Motor type: DC Servo Motors,
- Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
- Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
- Tracking Rates: Sidereal, Lunar, Solar
- Tracking Mode: Dual Axes Tracking
- Alignment Method: Brightest-Star Alignment, Two-Star Alignment
- Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
- Go-To Pointing Accuracy: Up to 5 arc min
Specifications:
| SKU | S11820 |
| UPC | 050234118200 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 305 |
| F/Ratio | 4.9 |
| Focal Length (mm) | 1500 |
| Secondary Diameter | 70mm |
| Secondary Obstruction (by diameter) | 23% |
| Secondary Obstruction by Area | 5% |
| Observational Info | |
| Dawes Limit | 0.38 |
| Rayleigh Limit | 0.46 |
| Limiting Mag. | 14.9 |
| Minimum Magnification | 43 |
| Maximum Magnification | 600 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | 2" Crayford |
| OTA Length (Retract/Ext.) | 36"/55" |
| OTA Outer Diameter | 14.25" |
| OTA Weight (with accessories) | 46.2 |
| Dob Base Weight | 53 |
| Dob Base Measurements | 32.5"x25" |
| Zenith Eyepiece Height | 58.5" |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Plossl |
| Magnification w/ Included Eyepieces | 60x/150x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Flextube 250P SynScan GoTo Collapsible Dobsonian Telescope
$ 1,715.00 - Sold Out
Sky-Watcher Flextube 250P SynScan GoTo Collapsible Dobsonian Telescope
Sky-Watcher SKU: S11810 | Helix SKU: CTS11810
The exciting new Sky-Watcher Dobsonian SynScan series is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance.
The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Flextube Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards. The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900 objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment! The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.
SynScan™ AZ hand control SPECIFICATIONS:
- Built-in WiFi control
- Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
- Motor type: DC Servo Motors,
- Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
- Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
- Tracking Rates: Sidereal, Lunar, Solar
- Tracking Mode: Dual Axes Tracking
- Alignment Method: Brightest-Star Alignment, Two-Star Alignment
- Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
- Go-To Pointing Accuracy: Up to 5 arc min
Specifications:
| SKU | S11810 |
| UPC | 050234118101 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| True Aperture (mm) | 257 |
| Primary Aperture (mm) | 254 |
| F/Ratio | 4.7 |
| Focal Length (mm) | 1200 |
| Secondary Diameter | 64mm |
| Secondary Obstruction (by diameter) | 25% |
| Secondary Obstruction by Area | 6% |
| Observational Info | |
| Dawes Limit | 0.46 |
| Rayleigh Limit | 0.55 |
| Limiting Mag. | 14.5 |
| Minimum Magnification | 36 |
| Maximum Magnification | 500 |
| Light Gathering (compared to next size down) | 57% |
| General Info | |
| Focuser | 2" Crayford |
| OTA Length (Retract/Ext.) | 31.5"/44" |
| OTA Outer Diameter | 11.375" |
| OTA Weight (with accessories) | 33 |
| Dob Base Weight | 39 |
| Dob Base Measurements | 30"x20" |
| Zenith Eyepiece Height | 49" |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Plossl |
| Magnification w/ Included Eyepieces | 48x/120x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Flextube 200P SynScan GoTo Collapsible Dobsonian Telescope
$ 1,450.00 - Sold Out
Sky-Watcher Flextube 200P SynScan GoTo Collapsible Dobsonian Telescope
Sky-Watcher SKU: S11800 | Helix SKU: CTS11800
The exciting new Sky-Watcher Dobsonian SynScan series is precision engineered instrument that will allow you to easily find and enjoy viewing night sky treasures, such as Planets, Nebulae, Star Clusters, Galaxies and much more. With its patented collapsible tube design, these Dobsonians are truly the ultimate in portability and performance.
The elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the SkyWatcher Flextube Dobsonian does not need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening! The patented Tension Control Handle allows users to add or reduce tension, thereby increasing or decreasing the friction between the optical tube and the sideboards. The SynScan™ AZ hand control allows you point your telescope at a specific object, or even tour the night sky at the touch of a button!! The user-friendly menu system allows automatic slewing to over 42,900 objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The patented dual encoder design allows the telescope to be moved manually whenever the user wishes - but with no need for re-alignment! The Sky-Watcher Dobsonian SynScan series combines the convenience and affordability of the traditional Dobsonian with the convenience of a computerized Go-To telescope.
SynScan™ AZ hand control SPECIFICATIONS:- Built-in WiFi control
- Power Supply: 10 to 15 V DC 1Amp, 2.1mm Plug (Center positive)
- Motor type: DC Servo Motors,
- Resolution: Motor encoder: 1,620,000 counts per revolution, Main axis encoder: 11,748 counts per revolution
- Slew speeds: 1.0X, 2.0X, 8X, 16X, 32X, 200X, 400X, 600X, 800X, 1000X
- Tracking Rates: Sidereal, Lunar, Solar
- Tracking Mode: Dual Axes Tracking
- Alignment Method: Brightest-Star Alignment, Two-Star Alignment
- Database: 25 user defined objects. Complete M, NGC and IC catalog, partial SAO catalogues, total 42,900 objects
- Go-To Pointing Accuracy: Up to 5 arc min
| SKU | S11800 |
| UPC | 050234118002 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 203 |
| F/Ratio | 5.9 |
| Focal Length (mm) | 1200 |
| Secondary Diameter | 48mm |
| Secondary Obstruction (by diameter) | 24% |
| Secondary Obstruction by Area | 6% |
| Observational Info | |
| Dawes Limit | 0.57 |
| Rayleigh Limit | 0.69 |
| Limiting Mag. | 14 |
| Minimum Magnification | 29 |
| Maximum Magnification | 400 |
| Light Gathering (compared to next size down) | 78% |
| General Info | |
| Focuser | 2" Crayford |
| OTA Length (Retract/Ext.) | 33"/44" |
| OTA Outer Diameter | 9.375" |
| OTA Weight (with accessories) | 24.2 |
| Dob Base Weight | 33 |
| Dob Base Measurements | 30"x20" |
| Zenith Eyepiece Height | 47" |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Plossl |
| Magnification w/ Included Eyepieces | 48x/120x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Flextube 300P Collapsible Dobsonian Telescope
$ 1,715.00 - Sold Out
Sky-Watcher Flextube 300P Collapsible Dobsonian Telescope
Sky-Watcher SKU: S11740 | Helix SKU: CTS11740
Sky-Watcher 12" DOB: Deep-Space Hero!
The Sky-Watcher 12" DOB is a big gun. If you are shooting for well resolved, elusive 12th-magnitude fuzzies, you now have the power. In fact, a very significant wow-factor extends down to viewing the stuff people usually concentrate on with 8" and 10" telescopes. Except they say, "WOW!", when they view through this super aperture amateur 12" SW telescope. You can not only be a hero to yourself, but a mystical guru to other backyard astronomers, scout groups, friends, and neighbors. Astronomy is a great hobby to share, and a SW 12" DOB makes you potentially the hit of any star party. Well, so much for ego satisfaction—the point is—the SW 12" DOB is a serious telescope that will be purchased by a serious amateur who wants serious deep-sky penetrating resolution. Be advised this Light Chariot is one sweet astronomical ride!
Viewing through the SW 12" DOB
Everything in deep-space appears brighter, and wider in extension with the SW 12" DOB. Many of the more challenging to resolve objects in smaller diameter telescopes now reveal their essential structure. Objects just within the threshold of a 10" aperture now appear more prominent and may be worth dwelling upon for extended periods. Comet hunters will delight in the fainter magnitudes that are possible to discern in the SW 12" DOB. Here at last is a telescope within the threshold to tackle elusive deep-space gems like the Horsehead Nebula in Constellation Orion. Located in Constellation Perseus, M76, is a very faint nebula of 11th magnitude. The SW 12" will capture this baby like you want to see it. M97, a planetary nebula in Ursa Major is very faint, but as a serious amateur you will want to see it. No worries, the SW 12" DOB will fulfill your quest. M61, a spiral galaxy in Constellation Virgo, will reveal spiral arms as you would hope to see them, but you will need a SW 12" telescope to resolve them well. The list goes on, and you will delight in planning your own journey of exploration. The incremental resolving power of the SW 12" aperture is beyond just being impressive, it's within amateur astronomy's super aperture threshold where the lucky observer is able to resolve well, many, many objects that smaller telescopes just don't have the horsepower to detail satisfactorily because they can't pull in enough light. Again, Sky-Watcher's compact, collapsible optical tube design makes this super aperture 12" DOB a far more practical decision to purchase.
The 12" Sky-Watcher Establishes a New Standard in Large Aperture Ease-of-Use
Observing with a Dobsonian has been described akin to shooting ducks in a gallery because it is so easy to find your target. Just swing your SW DOB to the quadrant of sky to be searched, and scan the vicinity. An 8x50mm Right Angle optical viewfinder provides both magnification and light-gathering to help narrow your search for those elusive fuzzies when star-hopping. The standard-equipment backlash-free 2" Crayford Focuser insures ultra smooth focusing adjustments. Multi-coated, 4-element Plössl eyepieces (25mm and 10mm) provide a spacious 52° Apparent Field of View. To ensure mechanical ease-of-use, SW uses a high performance Teflon bearing system in both axes combined with tension adjustment in altitude to facilitate setting the appropriate amount of friction, assuring smooth vertical and horizontal manual movement without free-play from small bumps or gusts of wind. This also eliminates the need to have a balanced optical tube as in an equatorial mount. Sky-Watcher's Teflon bearing system is preferable to the use of ball-bearings. Ball-bearings make unintended movement of the optical tube more difficult to control. Fortunately, at low power, deep-space objects leisurely drift through the field of the SW 12" DOB, so constant mechanical adjustment of the telescope's orientation isn't needed to keep objects in the field of view. Sky-Watcher's revolutionary truss-support concept allows the optical tube's front and back cells to collapse together, aligning on the truss support rods which can then be locked down for easy and secure telescope transport. This one piece, low-hassle OTA design is mechanically simple and results in large aperture telescopes that can be reasonably handled and transported by one individual. This innovation gives Sky-Watcher users tremendous functional ease-of-transportability.
Sky-Watcher Uses Quality Components Throughout
The Sky-Watcher 12" DOB utilizes quality components throughout. Pride of workmanship manifests itself in high quality standards of optical and mechanical fabrication. The polishing process for primary and diagonal mirror yields smooth mirror surfaces ensuring good contrast, and properly corrected optics show minimum alterations to the optical wave-front. On each primary mirror, and elliptical diagonal mirror aluminum is vacuum deposited to the front glass surface and then over coated with hard quartz (SiO4). Additional layers of Titanium Dioxide (TiO2) and (SiO4) are then applied. Dust covers are provided to help keep your DOB clean when not being used. The mechanical and structural components of the OTA exhibit rigid construction and outstanding stability. The mount construction is sturdy and rigid. Mount design, while simple, facilitates smooth motions about both axes. Quality accessories enhance the observer's viewing experience.
Specifications:
| SKU | S11740 |
| UPC | 050234117401 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 305 |
| Primary Edge Thickness | 38mm |
| F/Ratio | 4.9 |
| Focal Length (mm) | 1500 |
| Secondary Diameter | 70mm |
| Secondary Obstruction (by diameter) | 23% |
| Secondary Obstruction by Area | 5% |
| Observational Info | |
| Dawes Limit | 0.38 |
| Rayleigh Limit | 0.46 |
| Limiting Mag. | 14.9 |
| Minimum Magnification | 43 |
| Maximum Magnification | 600 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | 2" Crayford |
| OTA Length (Retract/Ext.) | 36"/55" |
| OTA Outer Diameter | 14.25" |
| OTA Weight (with accessories) | 46.2 |
| Dob Base Weight | 38.3 |
| Dob Base Measurements | 29"x25" |
| Zenith Eyepiece Height | 55.5" |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Plossl |
| Magnification w/ Included Eyepieces | 60x/150x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Flextube 250P Collapsible Dobsonian Telescope
$ 1,020.00 - Sold Out
Sky-Watcher Flextube 250P Collapsible Dobsonian Telescope
Sky-Watcher SKU: S11720 | Helix SKU: CTS11720
The Sky-Watcher 10" DOB: The Sweet-Spot for Aperture and Value!
This is a big, friendly horse of a telescope you can ride off into the sunset with, and then thrill to well resolved celestial views when twilight fades. The SW 10" DOB is an very satisfying telescope to own, an instrument that will provide a lifetime of continuing exploration of the heavens. This telescope will hit the sweet-spot for many amateurs, providing all the capability and value you are seeking in a large aperture telescope. Sky-Watcher's revolutionary truss-support concept allows the optical tube's front and back cells to collapse together, aligning on the truss support rods which can then be locked down for easy and secure telescope transport. This one piece, low-hassle OTA design is mechanically simple and results in a large aperture telescope that can be reasonably handled and transported by one individual. This innovation gives Sky-Watcher users tremendous functional ease-of-transportability.
Viewing with the SW 10"—Size Does Matter
In viewing deep-space, aperture matters—big time! With this telescope you have tremendous light gathering power. Prominent deep-space objects seen well in an 8" SW DOB, such as diffuse emission nebulae in the summer sky like the Lagoon (M8), Trifid (M20), and Swan (M17); the stunning globular star clusters M13 and M92 in Constellation Hercules; the awesome winter sky's Great Orion Nebula (M42) in Constellation Orion, and our enormous local galaxy group companion the Andromeda Galaxy (M31) in Constellation Andromeda, to name a very few, will appear more spectacular, brilliant, and wider in extension in a SW 10" DOB. Many challenging objects for an 8" aperture now come into their own with the SW 10" DOB: the planetary nebula the Crab (M1), a supernova remnant, requires a 10" aperture to truly begin to appreciate the several subtle, gaseous filamentary structures. M33 the spiral galaxy in Constellation Triangulum exhibits significantly more open arm structure. The Rosette Nebula in Monoceros begins to show the discernible pattern of a blooming rose. M51, the fascinating spiral Whirlpool Galaxy, displays remarkable greater structural detail in a 10" aperture vs. 8" diameter size telescope. There is no question the incremental resolving power of a 10-inch aperture is visually impressive when compared to an 8-inch. Therefore, it is no wonder then that the 10" aperture is overtaking the 8" as the serious amateur astronomer's aperture of choice in a Dobsonian telescope. Sky-Watcher's compact, collapsible optical tube design makes the decision to step up in aperture to a 10" even easier.
Sky-Watcher 10" DOB – a Class Act!
The Sky-Watcher 10" DOB utilizes quality components throughout. Pride of workmanship manifests itself in high quality standards of optical and mechanical fabrication. The polishing process for primary and diagonal mirror yields smooth mirror surfaces ensuring good contrast, and properly corrected optics show minimum alterations to the optical wave-front. On each parabolic primary mirror, and elliptical diagonal mirror aluminum is vacuum deposited to the front glass surface and then over coated with hard quartz (SiO4). Additional layers of Titanium Dioxide (TiO2) and (SiO4) are then applied The mechanical and structural components of the OTA exhibit rigid construction and outstanding stability. The mount construction is sturdy and rigid. Mount design, while simple, facilitates smooth motions about both axes. Quality accessories enhance the observer's viewing experience.
Sky-Watcher Dobsonians Epitomize Ease-of-Use
Observing with a Dobsonian has been described akin to shooting ducks in a gallery because it is so easy to find your target. Just swing your SW DOB to the quadrant of sky to be searched, and scan the vicinity. An 8x50mm Right Angle optical viewfinder provides both magnification and light gathering to help narrow your search for those elusive fuzzies when star-hopping. The standard-equipment backlash-free 2" Crayford Focuser insures ultra smooth focusing adjustments. Multi-coated, 4-element Plössl eyepieces (25mm and 10mm) provide a spacious 52° Apparent Field of View. To ensure mechanical ease-of-use, SW uses a high-performance Teflon bearing system in both axes combined with tension adjustment in altitude to facilitate setting the appropriate amount of friction, assuring smooth vertical and horizontal manual movement without free-play from small bumps or gusts of wind. This also eliminates the need to have a balanced optical tube as in an equatorial mount. Sky-Watcher's Teflon bearing system is preferable to the use of ball-bearings. Ball-bearings make unintended movement of the optical tube more difficult to control. Fortunately, at low power, deep-space objects leisurely drift through the field of the SW 10" DOB, so constant mechanical adjustment of the telescope's orientation isn't needed to keep objects in the field of view.
Specifications:
| SKU | S11720 |
| UPC | 050234117203 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| True Aperture (mm) | 257 |
| Primary Aperture (mm) | 254 |
| F/Ratio | 4.7 |
| Focal Length (mm) | 1200 |
| Secondary Diameter | 64mm |
| Secondary Obstruction (by diameter) | 25% |
| Secondary Obstruction by Area | 6% |
| Observational Info | |
| Dawes Limit | 0.46 |
| Rayleigh Limit | 0.55 |
| Limiting Mag. | 14.5 |
| Minimum Magnification | 36 |
| Maximum Magnification | 500 |
| Light Gathering (compared to next size down) | 57% |
| General Info | |
| Focuser | 2" Crayford |
| OTA Length (Retract/Ext.) | 31.5"/44" |
| OTA Outer Diameter | 11.375" |
| OTA Weight (with accessories) | 33 |
| Dob Base Weight | 26.5 |
| Dob Base Measurements | 29.5"x20" |
| Zenith Eyepiece Height | 48" |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Plossl |
| Magnification w/ Included Eyepieces | 48x/120x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Classic 250P Dobsonian Telescope
$ 910.00 - Sold Out
Sky-Watcher Classic 250P Dobsonian Telescope
Sky-Watcher SKU: S11620 | Helix SKU: CTS11620
| SKU | S11620 |
| UPC | 050234116206 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 254 |
| F/Ratio | 4.7 |
| Focal Length (mm) | 1200 |
| Secondary Diameter | 64mm |
| Secondary Obstruction (by diameter) | 25% |
| Secondary Obstruction by Area | 6% |
| Observational Info | |
| Dawes Limit | 0.46 |
| Rayleigh Limit | 0.55 |
| Limiting Mag. | 14.5 |
| Minimum Magnification | 36 |
| Maximum Magnification | 500 |
| Light Gathering (compared to next size down) | 57% |
| General Info | |
| Focuser | 2" Crayford |
| OTA Length (Retract/Ext.) | 45" |
| OTA Outer Diameter | 11.375" |
| OTA Weight (with accessories) | 28 |
| Dob Base Weight | 25 |
| Dob Base Measurements | 29"x20.5" |
| Zenith Eyepiece Height | 48" |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Included Eyepieces | 25/10 Super (modified Kellner) |
| Magnification w/ Included Eyepieces | 48x/120x |
| Included Case | No |
| Corrector | No |
Sky-Watcher StarTravel 120 AZ3 Refractor Telescope
$ 550.00 - Sold Out
Sky-Watcher StarTravel 120 AZ3 Refractor Telescope
Sky-Watcher SKU: S10105 | Helix SKU: CTS10105
This Sky-Watcher 120mm (4") f/5 telescope is a two-element, air-spaced, fully multi-coated objective, achromatic refractor, which can give exciting "rich field" astronomical views. It can provide excellent vistas of star fields, clusters, nebulae, galaxies, planets, the Moon and (with correct filtering or by projection) the Sun. It is also a fine terrestrial telescope when mounted on an alt-azimuth mount or a photographic tripod. Crisp images at a reasonable price make it an excellent beginner's "first telescope", or a great travelling telescope for a more advanced observer.
This larger aperture model has more light collecting power at the same focal ratio and accepts 2" diagonals for awesome wide field views, while only a small amount of chromatic aberration and weight. Weighing about 3kg. (6.5lbs.) the optical tube assembly is readily carried and with a compressed length of approximately 50cm (21.7") it is easily transported.
As a refractor, it is quick and easy to set up and the low-maintenance, enclosed optics come fully collimated from the factory. The optical tube assembly comes with "tube mounting rings". These hinge open to allow easy installation of the optical tube and the locks can be loosened during use to allow tube rotation and balancing. Mounting the telescope on an alt-azimuth or an equatorial mount is quick and simple with the appropriate mounting plate. This telescope also performs well as a fixed aperture, 510mm lens for both terrestrial and astrophotography.
The "fast" f/5 focal ratio, combined with today's high-speed films, is excellent for capturing lunar and solar eclipses as well as for nature photographs. A solid, equatorial mount and a method of guiding are required for longer exposure astrophotography. A T-mount thread on the eyepiece holder allows direct attachment of an appropriate T2-adapter and the optional extension tube gives closer focusing for terrestrial photography.
- 120mm achromatic refractor
- 600mm (f/5)
- Manual alt‐az mount (AZ3)
- Accessory tray
- Fine motion control knobs
- Adjustable aluminum tripod
- 25mm and10mm 1.25" Super eyepieces
- 1.25" erect 45 degree image diagonal
- 2" Rack and Pinionfocuser
- 2" to 1.25" adapter
- Red dot finder
Sky-Watcher Starlux 190MN Telescope
$ 2,140.00 - Sold Out
Sky-Watcher Starlux 190MN Telescope
Sky-Watcher SKU: S11550 | Helix SKU: CTS11550
The exciting new Starlux Mak-Newtonian from Sky-Watcher is just what astrophotographers and serious visual observers have been looking for.
The Mak-Newtonian design provides large aperture apochromatic performance with exceptional field correction in a compact, affordable package. Compared to a similarly sized Schmidt-Newtonian, the Mak-Newtonian yields a sharper image with more contrast. Naturally, the Mak-Newtonian is an excellent visual performer, too.
Specification:
| SKU | S11550 |
| UPC | 050234115506 |
| Optical Info | |
|---|---|
| Optical Design | Mak-Newtonian |
| Mirror Coatings | 94% Aluminum |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/Borosilicate |
| Primary Aperture (mm) | 203 |
| F/Ratio | 5.3 |
| Focal Length (mm) | 1000 |
| Secondary Diameter | 64mm |
| Secondary Obstruction (by diameter) | 34% |
| Secondary Obstruction by Area | 11% |
| Observational Info | |
| Dawes Limit | 0.61 |
| Rayleigh Limit | 0.74 |
| Limiting Mag. | 13.9 |
| Minimum Magnification | 27 |
| Maximum Magnification | 374 |
| Light Gathering (compared to next size down) | 11% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 37.5" |
| OTA Outer Diameter | 9.5" |
| OTA Weight (with accessories) | 29 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | No |
| Mounting Accessories | Rings/V-Rail |
| Included Eyepieces | None |
| Included Case | No |
| Corrector | No |
Sky-Watcher Skymax 180 Telescope
$ 1,500.00 - Sold Out
Sky-Watcher Skymax 180 Telescope
Sky-Watcher SKU: S11540 | Helix SKU: CTS11540
| SKU | S11540 |
| UPC | 050234115407 |
| Optical Info | |
|---|---|
| Optical Design | Mak-Cass |
| Mirror Coatings | 94% Aluminum |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/Borosilicate |
| True Aperture (mm) | 182 |
| Primary Aperture (mm) | 199 |
| F/Ratio | 15 |
| Focal Length (mm) | 2700 |
| Secondary Diameter | 41mm |
| Secondary Obstruction (by diameter) | 23% |
| Secondary Obstruction by Area | 5% |
| Observational Info | |
| Dawes Limit | 0.64 |
| Rayleigh Limit | 0.78 |
| Limiting Mag. | 13.8 |
| Minimum Magnification | 26 |
| Maximum Magnification | 354 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | Primary Mirror |
| OTA Length (Retract/Ext.) | 22" |
| OTA Outer Diameter | 8.625" |
| OTA Weight (with accessories) | 19 |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | 2" Star Diagonal |
| Mounting Accessories | V-Rail |
| Included Eyepieces | 28 LET |
| Magnification w/ Included Eyepieces | 96.4x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Skymax 150 Telescope
$ 880.00 - Sold Out
Sky-Watcher Skymax 150 Telescope
Sky-Watcher SKU: S11530 | Helix SKU: CTS11530
| SKU | S11530 |
| UPC | 050234115308 |
| Optical Info | |
|---|---|
| Optical Design | Mak-Cass |
| Mirror Coatings | 94% Aluminum |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/Borosilicate |
| True Aperture (mm) | 151 |
| Primary Aperture (mm) | 166 |
| Primary Edge Thickness | 12.5mm |
| F/Ratio | 12 |
| Focal Length (mm) | 1800 |
| Secondary Diameter | 47mm |
| Secondary Obstruction (by diameter) | 31% |
| Secondary Obstruction by Area | 10% |
| Observational Info | |
| Dawes Limit | 0.77 |
| Rayleigh Limit | 0.93 |
| Limiting Mag. | 13.4 |
| Minimum Magnification | 21 |
| Maximum Magnification | 295 |
| Light Gathering (compared to next size down) | 40% |
| General Info | |
| Focuser | Primary Mirror |
| OTA Length (Retract/Ext.) | 17.5" |
| OTA Outer Diameter | 7.5" |
| OTA Weight (with accessories) | 14 |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | 2" Star Diagonal |
| Mounting Accessories | V-Rail |
| Included Eyepieces | 28 LET |
| Magnification w/ Included Eyepieces | 64.3x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Skymax 127 Telescope
$ 550.00 - Sold Out
Sky-Watcher Skymax 127 Telescope
Sky-Watcher SKU: S11520 | Helix SKU: CTS11520
| SKU | S11520 |
| UPC | 050234115209 |
| Optical Info | |
|---|---|
| Optical Design | Mak-Cass |
| Mirror Coatings | 94% Aluminum |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/Borosilicate |
| Primary Aperture (mm) | 127 |
| F/Ratio | 12.1 |
| Focal Length (mm) | 1540 |
| Secondary Diameter | 39mm |
| Secondary Obstruction (by diameter) | 31% |
| Secondary Obstruction by Area | 9% |
| Observational Info | |
| Dawes Limit | 0.91 |
| Rayleigh Limit | 1.1 |
| Limiting Mag. | 13 |
| Minimum Magnification | 18 |
| Maximum Magnification | 250 |
| Light Gathering (compared to next size down) | 55% |
| General Info | |
| Focuser | Primary Mirror |
| OTA Length (Retract/Ext.) | 15" |
| OTA Outer Diameter | 5.75" |
| OTA Weight (with accessories) | 9.7 |
| Accessories | |
| Included Finder | 6x30 Finder |
| Included Diagonal | 2" Star Diagonal |
| Mounting Accessories | V-Rail |
| Included Eyepieces | 28 LET |
| Magnification w/ Included Eyepieces | 55x |
| Included Case | No |
| Corrector | No |
Sky-Watcher Skymax 102 Telescope
$ 320.00 - Sold Out
Sky-Watcher Skymax 102 Telescope
Sky-Watcher SKU: S11510 | Helix SKU: CTS11510
| SKU | S11510 |
| UPC | 050234115100 |
| Optical Info | |
|---|---|
| Optical Design | Mak-Cass |
| Mirror Coatings | 94% Aluminum |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/Borosilicate |
| True Aperture (mm) | 101.93 |
| Primary Aperture (mm) | 102 |
| F/Ratio | 12.7 |
| Focal Length (mm) | 1300 |
| Secondary Diameter | 31mm |
| Secondary Obstruction (by diameter) | 30% |
| Secondary Obstruction by Area | 9% |
| Observational Info | |
| Dawes Limit | 1.14 |
| Rayleigh Limit | 1.37 |
| Limiting Mag. | 12.5 |
| Minimum Magnification | 14 |
| Maximum Magnification | 201 |
| Light Gathering (compared to next size down) | 28% |
| General Info | |
| Focuser | Primary Mirror |
| OTA Length (Retract/Ext.) | 12.25 |
| OTA Outer Diameter | 4.625" |
| OTA Weight (with accessories) | 4.6 |
| Accessories | |
| Included Finder | Red Dot |
| Included Diagonal | 1.25" Star Diagonal |
| Mounting Accessories | V-Rail |
| Included Eyepieces | 25/10 Wide Angle |
| Magnification w/ Included Eyepieces | 52x/130x |
| Included Case | Yes |
| Corrector | No |
Sky-Watcher Skymax 90
$ 270.00 - Sold Out
Sky-Watcher Skymax 90
Sky-Watcher SKU: S11500 | Helix SKU: CTS11500
| SKU | S11500 |
| UPC | 050234115001 |
| Optical Info | |
|---|---|
| Optical Design | Mak-Cass |
| Mirror Coatings | 94% Aluminum |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/Borosilicate |
| Primary Aperture (mm) | 90 |
| F/Ratio | 13.9 |
| Focal Length (mm) | 1250 |
| Secondary Diameter | 29mm |
| Secondary Obstruction (by diameter) | 32% |
| Secondary Obstruction by Area | 10% |
| Observational Info | |
| Dawes Limit | 1.29 |
| Rayleigh Limit | 1.55 |
| Limiting Mag. | 12.3 |
| Minimum Magnification | 13 |
| Maximum Magnification | 177 |
| Light Gathering (compared to next size down) | 27% |
| General Info | |
| Focuser | Primary Mirror |
| OTA Length (Retract/Ext.) | 11" |
| OTA Outer Diameter | 4.125" |
| OTA Weight (with accessories) | 3.6 |
| Accessories | |
| Included Finder | Red Dot |
| Included Diagonal | 1.25" Star Diagonal |
| Mounting Accessories | 1/4-20" Foot |
| Included Eyepieces | 25/10 Wide Angle |
| Magnification w/ Included Eyepieces | 50x/125x |
| Included Case | Yes |
| Corrector | No |
Sky-Watcher Quattro 300P Imaging Newtonian 12" (305 mm)
$ 1,815.00 - Sold Out
Sky-Watcher Quattro 300P Imaging Newtonian 12" (305 mm)
Sky-Watcher SKU: S11230 | Helix SKU: CTS11230
Specifications:
| SKU | S11230 |
| UPC | 050234112307 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 305 |
| Primary Edge Thickness | 38mm |
| F/Ratio | 4 |
| Focal Length (mm) | 1200 |
| Secondary Diameter | 102mm |
| Secondary Obstruction (by diameter) | 33% |
| Secondary Obstruction by Area | 11% |
| Observational Info | |
| Dawes Limit | 0.38 |
| Rayleigh Limit | 0.46 |
| Limiting Mag. | 14.9 |
| Minimum Magnification | 43 |
| Maximum Magnification | 600 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 42.5" |
| OTA Outer Diameter | 14.25" |
| OTA Weight (with accessories) | 57 |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Mounting Accessories | Rings/D-Rail |
| Included Eyepieces | None |
| Included Case | No |
| Corrector | No (optional) |
Sky-Watcher Quattro 250P Imaging Newtonian 10" (254 mm)
$ 1,180.00 - Sold Out
Sky-Watcher Quattro 250P Imaging Newtonian 10" (254 mm)
Sky-Watcher SKU: S11220 | Helix SKU: CTS11220
| SKU | S11220 |
| UPC | 050234112208 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| True Aperture (mm) | 257 |
| Primary Aperture (mm) | 254 |
| F/Ratio | 4 |
| Focal Length (mm) | 1000 |
| Secondary Diameter | 89mm |
| Secondary Obstruction (by diameter) | 35% |
| Secondary Obstruction by Area | 12% |
| Observational Info | |
| Dawes Limit | 0.46 |
| Rayleigh Limit | 0.55 |
| Limiting Mag. | 14.5 |
| Minimum Magnification | 36 |
| Maximum Magnification | 500 |
| Light Gathering (compared to next size down) | 57% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 36.5" |
| OTA Outer Diameter | 11.375" |
| OTA Weight (with accessories) | 36.5 |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Mounting Accessories | Rings/V-Rail |
| Included Eyepieces | None |
| Included Case | No |
| Corrector | No (optional) |
Sky-Watcher Quattro 200P Imaging Newtonian 8" (205 mm)
$ 830.00 - Sold Out
Sky-Watcher Quattro 200P Imaging Newtonian 8" (205 mm)
Sky-Watcher SKU: S11210 | Helix SKU: CTS11210
| SKU | S11210 |
| UPC | 050234112109 |
| Optical Info | |
|---|---|
| Optical Design | Newtonian |
| Mirror Coatings | 94% Aluminum |
| Glass Type | Borosilicate |
| Primary Aperture (mm) | 203 |
| F/Ratio | 4 |
| Focal Length (mm) | 800 |
| Secondary Diameter | 70mm |
| Secondary Obstruction (by diameter) | 34% |
| Secondary Obstruction by Area | 12% |
| Observational Info | |
| Dawes Limit | 0.57 |
| Rayleigh Limit | 0.69 |
| Limiting Mag. | 14 |
| Minimum Magnification | 29 |
| Maximum Magnification | 400 |
| Light Gathering (compared to next size down) | 78% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 28" |
| OTA Outer Diameter | 9.375" |
| OTA Weight (with accessories) | 21 |
| Accessories | |
| Included Finder | 9x50 Finder |
| Included Diagonal | No |
| Mounting Accessories | Rings/V-Rail |
| Included Eyepieces | None |
| Included Case | No |
| Corrector | No (optional) |
Sky-Watcher EvoView 80/ProED 80 Package on AllView Mount
$ 1,275.00 - Sold Out
Sky-Watcher EvoView 80/ProED 80 Package on AllView Mount
Sky-Watcher SKU: S20160 | Helix SKU: CTS20160
Sky-Watcher EvoStar 80ED APO Refractor: Portable Optical Powerhouse!
Due to their unobstructed textbook-like diffraction patterns and exotic optical properties, the ED-APO produces the sharpest, highest quality imaging obtainable from any telescope optical design. These breathtakingly pristine celestial views are coveted by experienced amateur astronomers.
Observing with SW EvoStar 80ED Refractor
Fortunate indeed is the amateur astronomer with a SW ED-APO 80 mm refractor on a clear night with transparent skies and a stable atmosphere. The Sky-Watcher ED-APO 80mm is a modestly wide-field telescope offering bright, wide swaths of sky in a single view. It is well suited for wide-field astronomical observation of prominent nebulae, star clusters and galaxies from a dark-sky location, or can be used as an astrograph for sky photography. As a terrestrial spotting scope or telephoto lens, the ED-APO’s performance is absolutely superb. Ultra high contrast allows the subtlest of details to be easily scrutinized under conditions of good seeing. The petite silhouette of the SW ED-APO 80 mm makes for an excellent compact, portable telescope that travels light and fits a small space. At about 50-power, structural detail becomes apparent in our solar system’s gas giants like Saturn and Jupiter. The Moon also exhibits striking crater detail along the lunar terminator.
As an astrograph, the SW EvoStar 80ED delivers superb performance imaging a wide spectrum of astronomical phenomenon.
Refractors—the Ultimate Imaging Instruments
In a given aperture size, refractors will always exhibit sharper images than other optical designs because the refractor concentrates more light into the central airy-disk and first diffraction rings. There is no diffraction pattern interference caused by a diagonal mirror, or secondary mirror being suspended in the optical path (central obstruction) as is the case with reflectors.
Sky-Watcher ED-APOs—the Ultimate Refractors
Sky-Watcher ED-APO refractors provide the finest images obtainable—bar none—in their design class. If you are on a quest for the ultimate in pristine, near textbook-perfect astronomical imaging, look no further! Sky-Watcher ED apochromatic refractors deliver dramatic coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher ED-APO refractors are the logical choice as an investment in advanced instrumentation for exceptional viewing or photography.
Virtually Eliminates Residual Chromatic Aberration
The Sky-Watcher ED-APO design assures virtual elimination of residual “false color” (i.e. chromatic aberration) normally present in 2-element achromatic lens designs which utilize standard crown and flint glasses.
Sky-Watcher APO refractors utilize the finest extra-low dispersion (ED) glass available, FPL-53. This results in the best color correction for an ED doublet lens.
Schott Glass Used for Front Crown Element and ED 2 Lens Element
The P80ED will benefit from the inclusion of Schott glass being used for the positive front Crown element in the objective. Schott is the recognized world leader in glass utilized for precision optical lens systems, including medical instrumentation and famous-brand camera lenses. While Schott glass is only used in selected models, all other models utilize top-quality, Grade-A glass from perhaps less famous but, nonetheless, highly respected, high-quality glass manufacturers.
Pride and Perfection in Optical Manufacturing
Every lens element is individually inspected for purity and absence of striae and other image-degrading imperfections. Every lens is pitched polished to exacting standards of optical fabrication and performance by highly skilled opticians utilizing state-of-the-art methodology and rigidly controlled optical testing procedures. The result is high-quality, diffraction-limited optics performing to the theoretical limits of their respective aperture sizes. All lenses are uniformly air-spaced in their cell housings.
Sky-Watcher offers one of the most extensive lines of ED-APOCHROMATIC refractors in the world. Using only the finest fabrication materials available, Sky-Watcher APO refractors are manufactured to painstakingly rigorous, exacting standards of optical and mechanical quality to insure the amateur astronomer peak performance and a great experience each and every time a Sky-Watcher ED-APO is taken into the field. We know the amateur astronomer has very high expectations regarding astronomical equipment purchases. Sky-Watcher has been delivering consistent satisfaction for over a decade.
Metallic High-Transmission Lens Coatings
Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put. The proprietary Sky-Watcher “Metallic High-Transmission Coatings” (MHC) are the finest photon anti-rejection coatings in their class.
Light-Baffled Optical Systems
The objective lens cell is light-baffled to reject stray, unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.
Precision 2″ Crayford-style Focuser is Standard
Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2″ Crayford-style focuser-assembly with 1.25″ adaptor. Focuser offers 2 speeds for fine and ultra-fine focusing adjustments.
Tube Materials
The optical tube material is aluminum, powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white or black.
Telescope Tube Attachment Hardware
The Sky-Watcher APO optical tubes come with attachment hardware that allows them to be securely fastened to compatible mounts. The quick-release tube rings provided with SW ED-APO models 80ED, 100ED and 120ED are cast-aluminum, painted white.
Included Components for Selected Models
All Sky-Watcher USA EvoStar s come with 2-speed backlash-free 2” Crayford-style focusers and quality foam-lined metal carrying cases as standard equipment. EvoStars are also supplied with right-angle 8x50mm viewfinder with bracket; 2” dielectric diagonal; two 1.25” LE (Long Eye relief) eyepieces (LET20mm and LET5mm); 1.25” focuser adaptor; and tube ring attachment hardware that works with compatible mounts.
The AllView Mount is a truly versatile mount, perfect for panoramic photography, videography and astroimaging. AllView is a fully automatic Go-To mount that can be paired with a variety of cameras, camcorders and telescopes. Take time-lapse video of outdoor activities, panoramic images of cityscapes, astroimages of moon, stars, galaxies, and more with this sophisticated computerized mount.
- Capture full 360 degree panoramas with a DSLR or most point-and-shoot cameras
- Capture motion time lapse movies with your DSLR while the mount rotates
- When shooting video with a camcorder or DSLR, use AllView as a motorized panning head for smooth motion
- Attach any small telescope (using the standard 1.75” dovetail bar) and the mount’s Go-To electronics will find any of 42,000 celestial objects and automatically center and track them in your eyepiece.
Features include:
- Electronic shutter release — automatically triggers your DSLR when shooting panoramas or time lapse images*
- Dual encoder technology — allows you to move the mount by hand or using the hand control and without losing alignment
- 3/8” tripod socket for mounting to virtually any prosumer tripod
- Can be powered using 10 internally carried AA batteries for use in the field without the need for a bulky external power supply
- Motorized mount can be easily removed from the heavy duty tripod for easy transportation and storage
- Intuitive interface of the computerized hand control makes it easy to setup panoramas and time lapse images
- All brackets are included for mounting cameras and camcorders that use a standard ¼-20 tripod socket
*The supplied shutter release cable works with Canon Rebel DSLR cameras. Optional cables are available for other camera manufacturers and models.
Sky-Watcher EvoStar 150DX APO Refractor Telescope
$ 4,100.00 - Sold Out
Sky-Watcher EvoStar 150DX APO Refractor Telescope
Sky-Watcher SKU: S11195 | Helix SKU: CTS11195
- 150 mm apochromatic refractor with matched lens assembly with one ED element
- 1200 mm focal length (f/8)
- Dual-speed 3.4” rack-and-pinion focuser
- DX tube-ring attachment hardware with D-style dovetail plate
- Aluminum case
Specifications:
| SKU | S11195 |
| UPC | 050234111959 |
| Optical Info | |
|---|---|
| Optical Design | ED Doublet |
| Lens Coatings | Fully Multi-Coated |
| True Aperture (mm) | 150 |
| Primary Aperture (mm) | 150 |
| F/Ratio | 8 |
| Focal Length (mm) | 1200 |
| Observational Info | |
| Dawes Limit | 0.77 |
| Rayleigh Limit | 0.93 |
| Limiting Mag. | 13.3 |
| Minimum Magnification | 21 |
| Maximum Magnification | 295 |
| Light Gathering (compared to next size down) | 71% |
| General Info | |
| Focuser | 3.4" Dual Speed R & P |
| OTA Length (Retract/Ext.) | 50.5" |
| OTA Outer Diameter | 7.1" |
| OTA Weight (with accessories) | 22 |
| Accessories | |
| Mounting Accessories | Rings/D-Rail |
| Included Case | Yes |
| Corrector | No (optional) |
Sky-Watcher EvoStar 150ED Refractor Telescope
$ 3,000.00 - Sold Out
Sky-Watcher EvoStar 150ED Refractor Telescope
Sky-Watcher SKU: S11190 | Helix SKU: CTS11190
Sky-Watcher Evostar refractors provide the finest images obtainable in their design class. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher Evostar refractors are the logical choice for the discriminating amateur astronomer looking for an investment in advanced instrumentation for exceptional viewing and astrophotography.
- 150 mm apochromatic refractor with matched lens assembly with one ED element
- 1200 mm focal length (f/8)
- Dual-speed 2” Crayford-type focuser
- Tube-ring attachment hardware with V-style dovetail plate
- Aluminum case
- M48 adapter
Specifications:
| SKU | S11190 |
| UPC | 050234111904 |
| Optical Info | |
|---|---|
| Optical Design | ED Doublet |
| Lens Coatings | Fully Multi-Coated |
| True Aperture (mm) | 150 |
| Primary Aperture (mm) | 150 |
| F/Ratio | 8 |
| Focal Length (mm) | 1200 |
| Observational Info | |
| Dawes Limit | 0.77 |
| Rayleigh Limit | 0.93 |
| Limiting Mag. | 13.3 |
| Minimum Magnification | 21 |
| Maximum Magnification | 295 |
| Light Gathering (compared to next size down) | 71% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 50.5" |
| OTA Outer Diameter | 7.1" |
| OTA Weight (with accessories) | 20.5 |
| Accessories | |
| Mounting Accessories | Rings/V-Rail |
| Included Case | Yes |
| Corrector | No (optional) |
Sky-Watcher EvoStar 120ED Refractor Telescope
$ 2,490.00 - Sold Out
Sky-Watcher EvoStar 120ED Refractor Telescope
Sky-Watcher SKU: S11130 | Helix SKU: CTS11130
SKY-WATCHER EvoStar 120ED APO REFRACTOR: Serious Amateurs will Love the SW 120mm ED-APO Refractor
Sky-Watcher high-performance ED-APO refractors offer premium optical performance for the discriminating amateur astronomer. Refractors are coveted for their superb contrast, high-definition and coal-black sky background that make stars appear like diamonds embedded in black velvet. SW APO refractors utilize the most modern optical glasses and fabricating techniques to deliver the ultimate in high-fidelity astronomical imaging. Subtle details pop as never seen before in telescopes of lesser optical capability.
Observing with the Sky-Watcher EvoStar 120ED APO Refractor
The additional aperture compared to a 100 mm diameter lens provides a dramatic increase in resolution and a heighten sense of seeing lunar and planetary surface phenomenon in seemingly 3D high-definition.
Touring the Moon…the rugged Southern Highlands of the lunar surface are rich in craters. To the southeast, the famous crater Theophilus is 65 miles across. The raised triple-peaked central area is striking to observe in your SW 120ED. The crater has massive walls and the basin is 14,000 feet deep. One of the southernmost craters, Clavius, is a very large crater 145 miles across. It is located south of Tycho. In this same area can be found craters Maginus and Longomotanus which are also very worthy of exploration. To the north, the young crater Tycho dominates the southern lunar landscape. Named after the famous Danish astronomer Tycho Brahe, it is a spectacular sight with very high-rimmed walls. Your SW120ED will provide an impressive view. North of Tycho appearing brightly in a basin is the famous Rupes Recta (the Straight Wall), an 800 foot mountain that is a “must see” for amateur astronomers. Your SW 120ED will show it clearly and sharply the way you want to see it. On the north end of Mare Nubium, almost on the lunar N-S and E-W center line can be found 3 craters grouped together: Arzachel a young impact crater 60 miles across and 13,000 feet deep shows a terraced structure and a system of channel-like narrow depressions in its basin called “rilles”. Nearby are Alphonsus, a 70 mile wide crater, and Ptolemaus a prominent ancient crater 90 miles across with a heavily worn dark interior. The Earth’s Moon offers a treasure trove of fascinating detail to explore with your SW 120ED-APO EQ5 PRO. We have only featured a relative few examples of what is available. The views you will experience are so clear and sharp it might just feel like a veritable space-walk.
Planets are spectacular…the inner solar-system presents the colorful rusty-red planet Mars. Mars is a challenge for amateur astronomers, but your SW 120ED will show some very interesting detail. Olympus Mons, a volcanic crater 375-miles across and 16-miles high, is just one of the quests your capable SW120ED can tackle. Nirgal Vallis is a channel 600 miles long that responds well to the razor sharp contrast provided by the SW 120ED. The Grand Canyon of Mars, Valles Mariners, dwarfs that of our Earth’s Grand Canyon, but it still requires superb optics to view even though it is 150 miles wide and 4 miles deep. When prominent, the gleaming white Mars’ polar cap is in stark contrast to the redish-orange surface landscape of the rest of the planet. The SW 120ED will show you this detail like you want to see it. The gas giant Jupiter displays its swirling equatorial bands in high-definition with festoons and tonality within the bands. With regular observation, you will be able to follow storms and disturbances cross the planet in the southern equatorial band. Saturn’s storied surface phenomenon is simply stunning. View the rings and clearly see Cassini’s Division and cloud belts across its equator.
View Wonders of Deep-Space…beyond the solar-system hunt down double stars like Epsilon Lyrae, and the “double-double” in Lyra. A 120 mm ED-APO refractor will provide a crisp well defined image on par with up to a 7″ reflector. Always a star-party favorite, the beautiful double Alberio located in the tail of Cygnus is sensational. Alberio appears like a gold sparkler and its companion looks like a blue-green sparkler. It is a perfect object to view with your SW 120ED. Algol, an eclipsing variable star, sometimes called the “winking eye” fluctuates in brightness and is a suitable subject for the SW 120ED. Aldebaran, a beautiful orange giant in the Constellation Taurus is a delightful sight to view with the SW 120ED. In the eastern corner of Constellation Orion, Rigel, a bright blue double has a blue-green companion that requires excellent optics to see, a worthy subject for the SW 120ED. Tight globular star clusters like M13 in the Constellation Hercules appear like a beehive of crisp stellar pin points circling the central core, star upon thousands of stars. Compact globular star clusters lend themselves well to a refractor. M5 is a worthy object for viewing. M92, in the Constellation Hercules, is very compact globular with a bright core. It is a great object to view with the SW 120ED. M4, M10 and many other globular clusters can be seen well with the SW 120ED-APO refractor. The bright central cores of prominent nebulae can be seen and the brightest stars can be observed illuminating the glowing nebulosity which appears as ghostly apparitions.
The superb capabilities of the SW 120ED provide performance on a par with a reflector of perhaps up to 7″ in diameter on lunar, planetary, double-stars, globular star clusters, and depending on your ranking of unobstructed high-contrast as a necessary attribute, even the brighter nebulae may look better to you in a SW 120ED. These objects will stand out in bold relief contrasted against a very dark velvet-black sky background. Many advanced amateur astronomers feel the ED-APO experience is astronomy’s richest.
As an astrograph, the SW EvoStar 120ED APO performs superbly delivering crisp, high-fidelity imaging of planetary, lunar and aperture appropriate deep-space phenomenon.
Refractors – the Ultimate Imaging Instruments
In a given aperture size, refractors will always exhibit sharper images than other optical designs because the refractor concentrates more light into the central airy-disk and first diffraction rings. There is no diffraction pattern interference caused by a diagonal mirror or secondary mirror being suspended in the optical path (central obstruction) as is the case with reflectors.
Sky-Watcher ED-APOs – the Ultimate Refractors
Sky-Watcher ED-APO refractors provide the finest images obtainable – bar none – in their design class. If you are on a quest for the ultimate in pristine, near textbook-perfect astronomical imaging, look no further! Sky-Watcher ED apochromatic refractors deliver dramatic coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher ED-APO refractors are the logical choice as an investment in advanced instrumentation for exceptional viewing or photography.
Virtually Eliminates Residual Chromatic Aberration
The Sky-Watcher ED-APO design assures virtual elimination of residual “false color” (i.e. chromatic aberration) normally present in 2-element achromatic lens designs which utilize standard crown and flint glasses.
Sky-Watcher APO refractors utilize the finest extra-low dispersion (ED) glass available, FPL-53. This results in the best color correction for an ED doublet lens.
Schott Glass Used in Selected Models for Crown Element
Select models of ED-APO refractors will benefit from the inclusion of Schott glass being used for the positive front Crown element in the objective. Schott is the recognized world leader in glass utilized for precision optical lens systems, including medical instrumentation and famous-brand camera lenses. While Schott glass is only used in selected models, all other models utilize top-quality, Grade-A glass from perhaps less famous but, nonetheless, highly respected, high-quality glass manufacturers.
Pride and Perfection in Optical Manufacturing
Every lens element is individually inspected for purity and absence of striae and other image-degrading imperfections. Every lens is pitched polished to exacting standards of optical fabrication and performance by highly skilled opticians utilizing state-of-the-art methodology and rigidly controlled optical testing procedures. The result is high-quality, diffraction-limited optics performing to the theoretical limits of their respective aperture sizes. All lenses are uniformly air-spaced in their cell housings.
Sky-Watcher offers one of the most extensive lines of ED-APOCHROMATIC refractors in the world. Using only the finest fabrication materials available, Sky-Watcher APO refractors are manufactured to painstakingly rigorous, exacting standards of optical and mechanical quality to insure the amateur astronomer peak performance and a great experience each and every time a Sky-Watcher ED-APO is taken into the field. We know the amateur astronomer has very high expectations regarding astronomical equipment purchases. Sky-Watcher has been delivering consistent satisfaction for over a decade.
Metallic High-Transmission Lens Coatings
Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put. The proprietary Sky-Watcher “Metallic High-Transmission Coatings” (MHC) are the finest photon anti-rejection coatings in their class.
Light-Baffled Optical Systems
The objective lens cell is light-baffled to reject stray, unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.
Precision 2″ Crayford-style Focuser is Standard
Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2″ Crayford-style focuser-assembly. This focuser offers 2-speed fine and ultra-fine focusing adjustments.
Tube Materials
The optical tube material is aluminum, powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white or black.
Telescope Tube Attachment Hardware
The Sky-Watcher APO optical tubes come with attachment hardware that allows them to be securely fastened to compatible mounts. The quick-release tube rings provided with SW ED-APO models 80ED, 100ED and 120ED are cast-aluminum, painted white.
Included Components for Selected Models
All Sky-Watcher USA EvoStars come with 2-speed backlash-free 2” Crayford-style focusers and quality foam-lined metal carrying cases as standard equipment. EvoStars are also supplied with right-angle 8x50mm viewfinder with bracket; 2” dielectric diagonal; two 1.25” LE (Long Eye relief) eyepieces (LET20mm and LET5mm); 1.25” focuser adaptor; and tube ring attachment hardware that works with compatible mounts.
- 120 mm apochromatic Refractor with Schott BK-7 and FPL-53 ED glass
- 900 mm focal length (f/7.5)
- Dual-speed 2″ Crayford-type focuser with 1.25″ adaptor
- 8×50 RA erect-image finderscope
- 2″ dielectric diagonal
- 20 mm and 5 mm 1.25″ eyepieces
- Tube-ring attachment hardware n Aluminum carry case
| SKU | S11130 |
| UPC | 050234111300 |
| Optical Info | |
|---|---|
| Optical Design | ED Doublet |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/FPL-53(ED) |
| True Aperture (mm) | 120.5 |
| Primary Aperture (mm) | 120 |
| F/Ratio | 7.5 |
| Focal Length (mm) | 900 |
| Observational Info | |
| Dawes Limit | 0.97 |
| Rayleigh Limit | 1.16 |
| Limiting Mag. | 12.9 |
| Minimum Magnification | 17 |
| Maximum Magnification | 236 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 36" |
| OTA Outer Diameter | 5.625" |
| OTA Weight (with accessories) | 13.9 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | Rings/V-Rail |
| Included Eyepieces | 25mm LET/5 Planetary |
| Magnification w/ Included Eyepieces | 45x/180x |
| Included Case | Yes |
| Corrector | No (optional) |
Sky-Watcher EvoStar 100ED Refractor Telescope
$ 950.00 - Sold Out
Sky-Watcher EvoStar 100ED Refractor Telescope
Sky-Watcher SKU: S11120 | Helix SKU: CTS11120
SW EvoStar 100ED APO Refractor: When You Demand the Best!
Sky-Watcher is a leader in the design and manufacturer of ED-APO systems. Sky-Watcher offers one of the most extensive lines of ED-APOCHROMATIC refractors in the world. Using only the finest fabrication materials available, Sky-Watcher APO refractors are manufactured to painstakingly rigorous, exacting standards of optical and mechanical quality to insure the amateur astronomer peak performance and a great experience each and every time a Sky-Watcher ED-APO is taken into the field. We know the amateur astronomer has very high expectations regarding astronomical equipment purchases. Sky-Watcher has been delivering consistent satisfaction for decades. This telescope is designed for a lifetime of astronomical enjoyment!
Observing with the Sky-Watcher EvoStar 100ED 100mm Refractor
Turning the telescope to the first quarter Moon, the Apennine Mountains snap into focus revealing a cornucopia of jagged mountain ridges, canyons, and numerous small craters in razor-sharp detail. Not far removed, reaching skyward the crater wall of Archimedes pops into view in bold relief against the smooth flatlands that transverse the distance between it and the Apennine Mountains. This is lunar observing at its best – HD style. The gas giant Jupiter displays its swirling equatorial bands in high-definition with festoons, and tonality within the bands. The great spot is clearly visible, discreetly contrasted from the surrounding Jovian landscape. Saturn’s storied surface phenomenon is simply stunning. Hunt down double stars like Epsilon Lyrae, the “double-double" in Lyra. A 100mm refractor will provide a crisp well defined image superior to even a larger reflector. Always a star-party favorite, Alberio located in the tail of Cygnus never fails to please as it is a beautiful double. Alberio appears like a gold sparkler and its companion looks blue-green. It is a perfect refractor object. Compact globular star clusters lend themselves well to a refractor. Located outside our galaxy the globular M2 will probably resolve more stars in a 4" refractor than a 6" reflector. M4, M10 and many other globular cluster can be seen well with a 100mm refractor. M13, the fantastic globular in Hercules is a stunning sight in a 100mm refractor. The bright central cores of prominent nebulae can be seen and the brightest stars can be resolved. This is just the beginning of an incredible journey of exploration possible with a SW ED-APO 100mm refractor. As an astrograph, the SW EvoStar 100ED APO performs superbly delivering crisp, high-fidelity imaging of planetary, lunar and aperture appropriate deep-space phenomenon.
Refractors—the Ultimate Imaging Instruments
In a given aperture size, refractors will always exhibit sharper images than other optical designs because the refractor concentrates more light into the central airy-disk and first diffraction rings. There is no diffraction pattern interference caused by a diagonal mirror, or secondary mirror being suspended in the optical path (central obstruction) as is the case with reflectors.
Sky-Watcher ED-APOs—the Ultimate Refractors
Sky-Watcher ED-APO refractors provide the finest images obtainable—bar none—in their design class. If you are on a quest for the ultimate in pristine, near textbook-perfect astronomical imaging, look no further! Sky-Watcher ED apochromatic refractors deliver dramatic coal-back skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher ED-APO refractors are the logical choice as an investment in advanced instrumentation for exceptional viewing or photography.
Virtually Eliminates Residual Chromatic Aberration
The Sky-Watcher ED-APO design assures virtual elimination of residual “false color" (i.e. chromatic aberration) normally present in 2-element achromatic lens designs which utilize standard crown and flint glasses. Sky-Watcher APO refractors utilize the finest extra-low dispersion (ED) glass available, FPL-53. This results in the best color correction for an ED doublet lens.
Schott Glass Used in Selected Models for Crown Element
Select models of ED-APO refractors will benefit from the inclusion of Schott glass being used for the positive front Crown element in the objective. Schott is the recognized world leader in glass utilized for precision optical lens systems, including medical instrumentation, and famous-brand camera lenses. While Schott glass is only used in selected models, all other models utilize top-quality, Grade-A glass from perhaps less famous but, nonetheless, highly respected, high-quality glass manufacturers.
Pride and Perfection in Optical Manufacturing
Every lens element is individually inspected for purity and absence of striae and other image-degrading imperfections. Every lens is pitched polished to exacting standards of optical fabrication and performance by highly skilled opticians utilizing state-of-the-art methodology and rigidly controlled optical testing procedures. The result is high-quality, diffraction-limited optics performing to the theoretical limits of their respective aperture sizes. All lenses are uniformly air-spaced in their cell housings.
Metallic High-Transmission Lens Coatings
Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put. The proprietary Sky-Watcher “Metallic High-Transmission Coatings" (MHC) are the finest photon anti-rejection coatings in their class.
Light-Baffled Optical Systems
The objective lens cell is light-baffled to reject stray, unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.
Precision 2" Crayford-style Focuser is Standard
Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2" Crayford-style focuser-assembly with 1.25 adaptor. This focuser operates at 2 speeds for fine and ultra-fine focusing adjustments.
Tube Materials
The optical tube material is aluminum, powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white, or black.
Telescope Tube Attachment Hardware
The Sky-Watcher APO optical tubes come with attachment hardware that allows them to be securely fastened to compatible mounts. The quick-release tube rings provided with SW ED-APO models 80ED, 100ED and 120ED are cast-aluminum, painted white.
Included Components for Selected Models
All Sky-Watcher USA EvoStars come with 2-speed backlash-free 2” Crayford-style focusers and quality foam-lined metal carrying cases as standard equipment. EvoStars are also supplied with right-angle 8x50mm viewfinder with bracket; 2” dielectric diagonal; two 1.25” LE (Long Eye relief) eyepieces (LET20mm and LET5mm); 1.25” focuser adaptor; and tube ring attachment hardware that works with compatible mounts.
- 100 mm apochromatic Refractor with Schott BK-7 and FPL-53 ED glass
- 900 mm focal length (f/9)
- Dual-speed 2″ Crayford-type focuser with 1.25″ adaptor
- 8×50 RA erect-image finderscope
- 2″ dielectric diagonal
- 20 mm and 5 mm 1.25″ eyepieces
- Tube-ring attachment hardware n Aluminum carry case
Specifications:
| SKU | S11120 |
| UPC | 050234111201 |
| Optical Info | |
|---|---|
| Optical Design | ED Doublet |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/FPL-53(ED) |
| True Aperture (mm) | 100 |
| Primary Aperture (mm) | 100 |
| F/Ratio | 9 |
| Focal Length (mm) | 900 |
| Observational Info | |
| Dawes Limit | 1.16 |
| Rayleigh Limit | 1.4 |
| Limiting Mag. | 12.5 |
| Minimum Magnification | 14 |
| Maximum Magnification | 197 |
| Light Gathering (compared to next size down) | 56% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 34" |
| OTA Outer Diameter | 4.5625" |
| OTA Weight (with accessories) | 8.4 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | Rings/V-Rail |
| Included Eyepieces | 25mm LET/5 Planetary |
| Magnification w/ Included Eyepieces | 45x/180x |
| Included Case | Yes |
| Corrector | No (optional) |
Sky-Watcher Evostar 80ED Refractor Telescope
$ 825.00 - Sold Out
Sky-Watcher Evostar 80ED Refractor Telescope
Sky-Watcher SKU: S11100 | Helix SKU: CTS11100
Sky-Watcher EvoStar 80ED APO Refractor: Portable Optical Powerhouse!
Due to their unobstructed textbook-like diffraction patterns and exotic optical properties, the ED-APO produces the sharpest, highest quality imaging obtainable from any telescope optical design. These breathtakingly pristine celestial views are coveted by experienced amateur astronomers.
Observing with SW EvoStar 80ED 80 mm Refractor
Fortunate indeed is the amateur astronomer with a SW ED-APO 80 mm refractor on a clear night with transparent skies and a stable atmosphere. The Sky-Watcher ED-APO 80mm is a modestly wide-field telescope offering bright, wide swaths of sky in a single view. It is well suited for wide-field astronomical observation of prominent nebulae, star clusters and galaxies from a dark-sky location, or can be used as an astrograph for sky photography. As a terrestrial spotting scope or telephoto lens, the ED-APO’s performance is absolutely superb. Ultra high contrast allows the subtlest of details to be easily scrutinized under conditions of good seeing. The petite silhouette of the SW ED-APO 80 mm makes for an excellent compact, portable telescope that travels light and fits a small space. At about 50-power, structural detail becomes apparent in our solar system’s gas giants like Saturn and Jupiter. The Moon also exhibits striking crater detail along the lunar terminator.
As an astrograph, the SW EvoStar 80ED delivers superb performance imaging a wide spectrum of astronomical phenomenon.
Refractors—the Ultimate Imaging Instruments
In a given aperture size, refractors will always exhibit sharper images than other optical designs because the refractor concentrates more light into the central airy-disk and first diffraction rings. There is no diffraction pattern interference caused by a diagonal mirror, or secondary mirror being suspended in the optical path (central obstruction) as is the case with reflectors.
Sky-Watcher ED-APOs—the Ultimate Refractors
Sky-Watcher ED-APO refractors provide the finest images obtainable—bar none—in their design class. If you are on a quest for the ultimate in pristine, near textbook-perfect astronomical imaging, look no further! Sky-Watcher ED apochromatic refractors deliver dramatic coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Sky-Watcher ED-APO refractors are the logical choice as an investment in advanced instrumentation for exceptional viewing or photography.
Virtually Eliminates Residual Chromatic Aberration
The Sky-Watcher ED-APO design assures virtual elimination of residual “false color” (i.e. chromatic aberration) normally present in 2-element achromatic lens designs which utilize standard crown and flint glasses.
Sky-Watcher APO refractors utilize the finest extra-low dispersion (ED) glass available, FPL-53. This results in the best color correction for an ED doublet lens.
Schott Glass Used for Front Crown Element and ED 2 Lens Element
The P80ED will benefit from the inclusion of Schott glass being used for the positive front Crown element in the objective. Schott is the recognized world leader in glass utilized for precision optical lens systems, including medical instrumentation and famous-brand camera lenses. While Schott glass is only used in selected models, all other models utilize top-quality, Grade-A glass from perhaps less famous but, nonetheless, highly respected, high-quality glass manufacturers.
Pride and Perfection in Optical Manufacturing
Every lens element is individually inspected for purity and absence of striae and other image-degrading imperfections. Every lens is pitched polished to exacting standards of optical fabrication and performance by highly skilled opticians utilizing state-of-the-art methodology and rigidly controlled optical testing procedures. The result is high-quality, diffraction-limited optics performing to the theoretical limits of their respective aperture sizes. All lenses are uniformly air-spaced in their cell housings.
Sky-Watcher offers one of the most extensive lines of ED-APOCHROMATIC refractors in the world. Using only the finest fabrication materials available, Sky-Watcher APO refractors are manufactured to painstakingly rigorous, exacting standards of optical and mechanical quality to insure the amateur astronomer peak performance and a great experience each and every time a Sky-Watcher ED-APO is taken into the field. We know the amateur astronomer has very high expectations regarding astronomical equipment purchases. Sky-Watcher has been delivering consistent satisfaction for over a decade.
Metallic High-Transmission Lens Coatings
Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put. The proprietary Sky-Watcher “Metallic High-Transmission Coatings” (MHC) are the finest photon anti-rejection coatings in their class.
Light-Baffled Optical Systems
The objective lens cell is light-baffled to reject stray, unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.
Precision 2″ Crayford-style Focuser is Standard
Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2″ Crayford-style focuser-assembly with 1.25″ adaptor. Focuser offers 2 speeds for fine and ultra-fine focusing adjustments.
Tube Materials
The optical tube material is aluminum, powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white or black.
Telescope Tube Attachment Hardware
The Sky-Watcher APO optical tubes come with attachment hardware that allows them to be securely fastened to compatible mounts. The quick-release tube rings provided with SW ED-APO models 80ED, 100ED and 120ED are cast-aluminum, painted white.
Included Components for Selected Models
All Sky-Watcher USA EvoStar s come with 2-speed backlash-free 2” Crayford-style focusers and quality foam-lined metal carrying cases as standard equipment. EvoStar s are also supplied with right-angle 8x50mm viewfinder with bracket; 2” dielectric diagonal; two 1.25” LE (Long Eye relief) eyepieces (LET20mm and LET5mm); 1.25” focuser adaptor; and tube ring attachment hardware that works with compatible mounts.
- 80 mm apochromatic Refractor with Schott BK-7 and FPL-53 ED glass
- 600 mm focal length (f/7.5)
- Dual-speed 2″ Crayford-type focuser with 1.25″ adaptor
- 8×50 RA erect-image finderscope
- 2″ dielectric diagonal
- 20 mm and 5 mm 1.25″ eyepieces
- Tube-ring attachment hardware and Aluminum carry case
Specifications:
| SKU | S11100 |
| UPC | 050234111003 |
| Optical Info | |
|---|---|
| Optical Design | ED Doublet |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7/FPL-53(ED) |
| True Aperture (mm) | 80 |
| Primary Aperture (mm) | 80 |
| F/Ratio | 7.5 |
| Focal Length (mm) | 600 |
| Observational Info | |
| Dawes Limit | 1.45 |
| Rayleigh Limit | 1.75 |
| Limiting Mag. | 12 |
| Minimum Magnification | 11 |
| Maximum Magnification | 157 |
| Light Gathering (compared to next size down) | 24% |
| General Info | |
| Focuser | 2" Dual Speed Crayford |
| OTA Length (Retract/Ext.) | 22.5" |
| OTA Outer Diameter | 4.5625" |
| OTA Weight (with accessories) | 7.3 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | Rings/V-Rail |
| Included Eyepieces | 25mm LET/5 Planetary |
| Magnification w/ Included Eyepieces | 30x/120x |
| Included Case | Yes |
| Corrector | No (optional) |
Sky-Watcher Esprit 150mm ED Triplet APO Refractor Telescope
$ 8,250.00 - Sold Out
Sky-Watcher Esprit 150mm ED Triplet APO Refractor Telescope
Sky-Watcher SKU: S11430 | Helix SKU: CTS11430
Designed wtih the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift. All Sky-Watcher USA Esprit refractors come with a 9 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.
Specifications:
| SKU | S11430 |
| UPC | 050234114301 |
| Optical Info | |
|---|---|
| Optical Design | ED Triplet Refractor |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7 (2)/FPL-53(ED) |
| Primary Aperture (mm) | 150 |
| F/Ratio | 7 |
| Focal Length (mm) | 1040 |
| Observational Info | |
| Dawes Limit | 0.77 |
| Rayleigh Limit | 0.93 |
| Limiting Mag. | 13.4 |
| Minimum Magnification | 21 |
| Maximum Magnification | 295 |
| Light Gathering (compared to next size down) | 56% |
| General Info | |
| Focuser | 3.4" Dual Speed R&P |
| OTA Length (Retract/Ext.) | 36.9"/40.5" |
| OTA Outer Diameter | 7.9" |
| OTA Weight (with accessories) | 32 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | Rings/D-Rail |
| Included Eyepieces | None |
| Included Case | Yes |
| Corrector | Yes |
Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope
$ 3,199.00 - Sold Out
Sky-Watcher Esprit 120mm ED Triplet APO Refractor Telescope
Sky-Watcher SKU: S11420 | Helix SKU: CTS11420
Overview
Designed wtih the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift. All Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.
Specifications:
| SKU | S11420 |
| UPC | 050234114202 |
| Optical Info | |
|---|---|
| Optical Design | ED Triplet Refractor |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7 (2)/FPL-53(ED) |
| Primary Aperture (mm) | 120 |
| F/Ratio | 7 |
| Focal Length (mm) | 840 |
| Observational Info | |
| Dawes Limit | 0.97 |
| Rayleigh Limit | 1.16 |
| Limiting Mag. | 12.9 |
| Minimum Magnification | 17 |
| Maximum Magnification | 236 |
| Light Gathering (compared to next size down) | 44% |
| General Info | |
| Focuser | 3.4" Dual Speed R&P |
| OTA Length (Retract/Ext.) | 27.4"/31.5" |
| OTA Outer Diameter | 6.875" |
| OTA Weight (with accessories) | 22 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | Rings/D-Rail |
| Included Eyepieces | None |
| Included Case | Yes |
| Corrector | Yes |
Sky-Watcher Esprit 100mm ED Triplet APO Refractor Telescope
$ 3,210.00 - Sold Out
Sky-Watcher Esprit 100mm ED Triplet APO Refractor Telescope
Sky-Watcher SKU: S11410 | Helix SKU: CTS11410
Overview
Designed with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift. All Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.
Specifications:
| SKU | S11410 |
| UPC | 050234114103 |
| Optical Info | |
|---|---|
| Optical Design | ED Triplet Refractor |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7 (2)/FPL-53(ED) |
| Primary Aperture (mm) | 100 |
| F/Ratio | 5.5 |
| Focal Length (mm) | 550 |
| Observational Info | |
| Dawes Limit | 1.16 |
| Rayleigh Limit | 1.4 |
| Limiting Mag. | 12.5 |
| Minimum Magnification | 14 |
| Maximum Magnification | 197 |
| Light Gathering (compared to next size down) | 56% |
| General Info | |
| Focuser | 3.4" Dual Speed R&P |
| OTA Length (Retract/Ext.) | 18.3"/24.5" |
| OTA Outer Diameter | 5.75" |
| OTA Weight (with accessories) | 16 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | Rings/D-Rail |
| Included Eyepieces | None |
| Included Case | Yes |
| Corrector | Yes |
Sky-Watcher Esprit 80mm ED Triplet APO Refractor Telescope
$ 1,699.00 - Sold Out
Sky-Watcher Esprit 80mm ED Triplet APO Refractor Telescope
Sky-Watcher SKU: S11400 | Helix SKU: CTS11400
Overview
Designed with the discerning astrophotographer in mind, Sky-Watcher USA’s top-of-the-line Esprit refractors deliver the kind of imaging performance one would expect from telescopes costing thousands of dollars more. With their three-element air spaced objective lens design, false color is completely eliminated, yielding exceptional contrast and sharpness. The included 2-element field corrector guarantees a flat field across the entire imaging plane. The Sky-Watcher exclusive Helinear Track focusing system provides a smooth, rock-solid focuser with zero image shift. All Sky-Watcher USA Esprit refractors come with a 8 x 50 right angle finderscope, 2-inch Star diagonal, 2-element field flattener*, camera adapter, D-style dovetail and padded case. Everything you need to get out under the stars.
Specifications:
| SKU | S11400 |
| UPC | 050234114004 |
| Optical Info | |
|---|---|
| Optical Design | ED Triplet Refractor |
| Lens Coatings | Fully Multi-Coated |
| Glass Type | BK7 (2)/FPL-53(ED) |
| Primary Aperture (mm) | 80 |
| F/Ratio | 5 |
| Focal Length (mm) | 400 |
| Observational Info | |
| Dawes Limit | 1.45 |
| Rayleigh Limit | 1.75 |
| Limiting Mag. | 12 |
| Minimum Magnification | 11 |
| Maximum Magnification | 157 |
| General Info | |
| Focuser | 2.7" Dual Speed R&P |
| OTA Length (Retract/Ext.) | 17.4" |
| OTA Outer Diameter | 4.875" |
| OTA Weight (with accessories) | 8.8 |
| Accessories | |
| Included Finder | 8x50 RACI |
| Included Diagonal | 2" Dielectric |
| Mounting Accessories | V-Rail Foot |
| Included Eyepieces | None |
| Included Case | Yes |
Celestron CGEM II EQ MOUNT AND TRIPOD
$ 2,049.00 - Sold Out
Celestron CGEM II EQ MOUNT AND TRIPOD
Overview
A fresh update to the venerable CGEM mount, the CGEM II has a contemporary, attractive, bold appearance and is capable of carrying Celestron’s higher-end SCT optical tubes (up to 11") securely and vibration free, which is ideal for both imaging and visual observing. Capable of holding 40 lbs. of payload and slewing at 5° per second, you will be able to instantly point to any of the celestial objects in the database.
ERGONOMIC DESIGN
CGEM II was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.
INNOVATION
The CGEM II series features Celestron’s innovative All-Star Polar alignment procedure. All-Star allows you to accurately polar align the mount using any star, even ig the celestial pole cannot be seen. Another great feature of the CGEM II sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.
PERFORMANCE
For objects near the Meridian (imaginary line passing from North to South), the CGEM II will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM II mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects. Celestron's CGEM II mount is the perfect fit between the Advanced VX Series and CGX Series.
Computerized Mount Features
- 40 lbs payload capacity
- Dual-fit Vixen/CG-5 and Losmandy/CGE dovetail saddle
- 2" steel legs with height index marks for quick leveling
- USB 2.0 port on hand control for direct links to a PC via ASCOM supported software.
- 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
- Internal cabling throughout for worry-free remote operation
- Low cog DC Servo motor with integrated optical encoders offer smooth, quiet operation
- Able to track past the meridian allowing seamless imaging
- Permanent periodic error corrections allow users to train out the worm gears periodic errors once, while the mount retains the PEC recordings.
- Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures, and user-defined slew limits
- Built-in polar alignment program to polar align on any star in the sky
- Longer clutch levers to make tightening and loosening of clutches easier
- Custom database lists of all the most famous deep-sky objects by name and catalog number
- Solar System alignment method allows to view the moon and planets during the day
- Custom Rate 9 feature allows to set maximum slew rate
- Tandem mode allows to star align the mount even when positioned for tandem scope use
- RS-232 communication port on hand control to control the telescope via a personal computer
- Includes NexRemote telescope control software, for advanced control of telescope via computer
- Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings
- GPS-compatible with optional SkySync GPS Accessory
Celestron CGEM II 700 MAKSUTOV-CASSEGRAIN TELESCOPE
$ 3,499.00 - Sold Out
Celestron CGEM II 700 MAKSUTOV-CASSEGRAIN TELESCOPE
Overview
The 700 Maksutov-Cassegrain CGEM II telescope (CGEM II 700 Mak) is a specialized instrument designed for detailed, high contrast views of smaller celestial objects like the planets. With the Maksutov-Cassegrain optical tube and sturdy equatorial mount and tripod, this kit will provide unparalleled views of the planets and up-close views of the lunar surface, including craters and maria, Maks are also well suited to hunting smaller, fainter, deep sky objects such as globular clusters and planetary nebulae. Astronomers located in urban areas will appreciate the Mak’s ability to bring out more contrast in celestial objects. Transporting the entire system to a dark site is not a problem either. The optical tube, mount head, tripod, counterweight bar, and counterweight all disassemble, with no tools required, into separate manageable pieces.
Maksutov-Cassegrain Optical Design
The Mak is a catadioptric telescope, which means the optical design includes both a lens and a mirror. The light coming through a Mak passes through the corrector lens to the primary mirror and back to a spherical secondary mirror before it hits your eyepiece. Images are bright, sharp, and virtually free of chromatic aberration.
The Maksutov-Cassegrain’s optical design offers several unique benefits. Instead of a secondary mirror, the Mak features a “secondary spot” of reflective coating applied directly to the inside of the corrector plate. Because of this, the telescope does not require frequent collimation like a Schmidt-Cassegrain. Also, the secondary spot is significantly smaller than a traditional Schmidt-Cassegrain secondary mirror, giving the Mak its signature high-contrast views.
One important thing to note about Maksutov-Cassegrain telescopes is that the larger, heavier Maksutov corrector plate takes longer to cool down and adjust to ambient air temperature compared to a Schmidt-Cassegrain of the same aperture.
CGEM II Mount & Tripod
CGEM II is a sturdy equatorial mount capable of rigidly supporting the 700 Mak. Its 40 lbs load capacity can handle the 19 lbs optical tube with ease, leaving lots of capacity to spare for your camera and any accessories. The heavy-duty adjustable height tripod has 2” diameter steel tripod legs with graduated markings that make it easy to extend the legs to the same height. The 700 Mak connects directly to the CGEM II with its CGE dovetail mounting bar.
The mount is packed with functionality and conveniences that make imaging with the 700 Mak easy. The fully computerized mount will automatically “GoTo” any of the 40,000+ astronomical objects selected from the NexStar+ hand controller’s database and automatically track the object as it appears to move across the night sky.
Designed with imaging in mind, the CGEM II motor drive system accurately tracks during an exposure. At the heart of the system are low cog DC servo motors with integrated optical encoders. The low cog design helps the motors run smoothly, while the integrated optical encoders provide accuracy. The motors turn steel worm gears, which are supported by precision bearings, against brass worm wheels. These components also help to make the motor drive system operate smoothly and accurately.
To track objects in the night sky, the mount must first be polar-aligned. Celestron makes this process easier than ever with the innovative All-Star Polar Alignment procedure. No extra equipment, such as a polar finder scope, is required. (An optional polar alignment finder scope is available if desired.) Best of all, the alignment can usually be completed in about 15 minutes, even without a clear view of Polaris.
All mounts have some amount of “periodic tracking error” inherent in them caused by tiny gear imperfections. To mitigate this, the CGEM II has Permanent Periodic Error Correction (PPEC). This allows you to run a routine to record the periodic errors only once; the recording is kept in memory, and subsequently corrects for the mount’s periodic tracking error. If an even higher level of tracking accuracy is desired, the CGEM II also has a dedicated autoguider port to connect an autoguiding camera directly to the mount to correct for any residual tracking errors.
Conditions for imaging are best when celestial objects are at their highest point in the sky with the darkest background, called the meridian. But some German equatorial mounts have trouble tracking near the meridian because they need to perform a “meridian flip,” readjusting their position to avoid the tube striking the mount. CGEM II does not suffer from this problem, imaging through the meridian with ease and not requiring a meridian flip until the object is a full 20° past the meridian.
The NexStar+ also has dozens of other functions to control every aspect of the mount’s behavior. These include:
- Multiple ways to align the mount to the night sky
- Adjustable slew rates up to 5°/second
- Northern or Southern hemisphere compatibility
- Adjustable autoguiding rates
- Hibernate mode so the mount can be powered down without loss of alignment
- Continual firmware development, with new features added regularly
In addition to the autoguider port, the CGEM II also has other ports to enhance and expand the capabilities of the mount. The hand controller has a USB 2.0 port for those who wish to control the mount with an external computer and optional third-party software. There is an AUX port on the mount that can support optional accessories such as StarSense AutoAlign.
When imaging, cable management can be a problem. The camera has a cable, the mount’s power source has a cable, and additional cables can come from a computer connection and augtoguider. To minimize cable management issues and prevent unwanted snags, all cabling for the mount is housed internally. This also eliminates the need to connect or disconnect an external Dec. motor cable when the mount is set up or broken down.
Accessories Included
The CGEM II 700 Mak comes complete with a 2” Visual Back, a 2” Star Diagonal with 1.25” adapter, a 28 mm wide-field 2” eyepiece, and a large 8x50 straight-through finderscope. The optical tube accommodates the larger 2” accessories, such as 2" Barlow lenses, the 2" eyepiece and filter kit, and larger wide-field eyepieces.
StarBright XLT Technology
StarBright XLT is Celestron’s revolutionary optical coating system that outperforms any other coating in the commercial telescope market. There are three major components that make up our StarBright XLT high-transmission optical system design:
- Unique enhanced multi-layer mirror coatings made from precise layers of aluminum, SiO2 (quartz), TiO2 (titanium dioxide), and SiO2 (silicon dioxide). Reflectivity is fairly flat across the spectrum, optimizing it for both imaging and visual observing.
- Multi-layer anti-reflective coatings made from precise layers of MgF2 (magnesium fluoride) and HfO2 (hafnium dioxide). Hafnium—a rare element that costs nearly $2,000 per kilogram—gives us a wider band pass than the titanium used in competing coatings.
- High-transmission water white glass is used instead of soda lime glass for the corrector lens. Water white glass transmits about 90.5% without anti-reflective coatings; that’s 3.5% better transmission than uncoated soda lime glass. When water white glass is used in conjunction with StarBright XLT’s anti-reflective coatings, the average transmission reaches 97.4%, an 8% improvement.
