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.
|Mirror Coatings||94% Aluminum|
|Lens Coatings||Fully Multi-Coated|
|Primary Aperture (mm)||203|
|Focal Length (mm)||1000|
|Secondary Obstruction (by diameter)||34%|
|Secondary Obstruction by Area||11%|
|Light Gathering (compared to next size down)||11%|
|Focuser||2" Dual Speed Crayford|
|OTA Length (Retract/Ext.)||37.5"|
|OTA Outer Diameter||9.5"|
|OTA Weight (with accessories)||29|
|Included Finder||8x50 RACI|