Canon ST-E3-RT Speedlite Transmitter


Vendor: Canon


Pin It

Canon ST-E3-RT Speedlite Transmitter

Canon SKU: 5743B002 | Helix SKU: CA5743B002

For sophisticated wireless flash setups, there's nothing like the new Speedlite Transmitter ST-E3-RT*. Facilitating radio controlled, two-way wireless transmission up to 98.4 feet, among up to five groups or fifteen individual Speedlites, the ST-E3-RT represents the next generation in wireless flash systems. With operational controls similar to the new Speedlite 600EX-RT, including diverse flash metering options, and a number of flash modes, the Speedlite Transmitter ST-E3-RT makes complex lighting setups simple. With a compact design and highly reliable construction, combined with a clearly laid-out information panel and buttons with back lighting and more, the Speedlite Transmitter ST-E3-RT is an indispensable tool for advanced, professional flash photography.

*Because it does not have an optical transmission function, the Speedlite Transmitter ST-E3-RT is not compatible with earlier Speedlite models such as 580EX II.

Radio transmissions wireless Speedlite transmitter

Compatible Cameras

Type A EOS cameras (E-TTL II/E-TTL autoflash)

Sync Speed

High-Speed Sync provided (EOS-1D X and EOS 5D Mark III only)

Flash Exposure Confirmation

Flash exposure confirmation lamp lights in green
* If it does not light, shooting is not performed with the standard exposure

AF Assist Beam

N/A

Wireless Functions

Transmission System

Radio Transmission

Transmission Range

Approx. 98.4 ft. (30m)

Flash Ratio Control

1:8 - 1:1 - 8:1, power 1/2-stop increments

Flash Coverage

Transmission Angle: 360° all around

Recever Operation Confirmation

Green Light
Lit: Radio Transmissions Okay
Red Light
Lit: Not Connected
Blinking: Transmission Error/ Too many units (Sender units + receiver units = more than 16 units)
Orange Light
Lit: Sub-sender transmission
Blinking: Receiving remote release shooting, linked shooting signal

Receiver Unit SE Mode Cancellation

The test flash button can be pressed to test if the receiver units fire or cancel the auto power off status.

General

Power Source

AA/LRG Alkaline Batteries x2(Ni-MH and Lithium batteries can also be used)
Battery Life: Approx. 10 hours continuously *When using AA/LR6 alkaline batteries used (At a room temperature +23°C/73°F).

SE Mode

Power off after 5 min. of idle operation

Dimensions

2.65 (W) x 2.42 (H) x 3.05 (D) in. / 67.4 (W) x 61.5 (H) x 77.4 (D) mm

Weight

3.9 oz. / 110g (excluding battery)