Canon 5743B003 - Speedlite Transmitter ST-E3-RT



Speedlite Transmitter ST-E3-RT
Manufacturer's price :
286,91 CHF (tax excl.)

Visuals price :

243,87 CHF


Usually ships within 1 week

More info  

The Canon ST-E3-RT Speedlite Transmitter can help you take full advantage of all the latest features on Canon's top-of-the-line 600EX-RT flash. The ST-E3-RT makes complex lighting setups simple by facilitating radio-controlled, two-way wireless transmission up to 98.4' away, among up to five groups or fifteen individual Speedlites. It has controls similar to the new Speedlite 600EX-RT, including multiple flash metering options, and a variety of flash modes. Compact design with highly reliable construction combined with a clearly laid-out information panel and buttons with back lighting make this an indispensible tool for advanced professional flash photography. The ST-E3-RT represents the next generation in wireless flash systems.

Note: 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.

- Newly-designed wireless system uses 2-way radio wave communication for enhanced communication among master and slave units. Achieves a transmission distance of up to 98.4' (30 m), all at a 360 degree angle.

- Up to 5 groups, or 15 individual flashes can be controlled via 1 transmitter.

- Supports E-TTL II flash, manual flash, stroboscopic and auto external flash metering.

- Dot matrix LCD panel displays all pertinent information simultaneously and backlit control panel means easy operation.

- 8 types of custom functions, 3 types of personal functions.

- Improved hot shoe contacts for more reliable information transmission and operation.

- Slave operation confirmation: 

- Green Light--Lit: Radio Transmissions Okay

- Red Light--Lit: Not Connected

- Blinking: Transmission Error/ Too many units

- Orange Light--Lit: Sub-master transmission

- Blinking: Receiving remote release shooting, linked shooting signal

- Not compatible with earlier Speedlite models such as 580EX II

in the box

- Soft Case




Radio transmissions wireless Speedlite transmitter

Transmission Range

Approx. 98.4 ft. (30m)

Flash Control

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


Flash coverage: Transmission Angle: 360° all around

Power Source

2x AA/LRG Alkaline Batteries (Ni-MH and Lithium batteries can also be used)

Battery Life: Approx. 10 hours continuously when using AA/LR6 alkaline batteries (At a room temperature of 73°F/+23°C).


2.65 x 2.42 x 3.05" (67.4 x 61.5 x 77.4 mm)


3.9 oz (110 g) excluding battery

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