The Canon ST-E3-RT Speedlite Transmitter can help you take full advantage of all the features on Canon's Speedlite 600EX-RT and 430EX III-RT flashes.
The Canon ST-E3-RT Speedlite Transmitter can help you take full advantage of all the features on Canon's Speedlite 600EX-RT and 430EX III-RT flashes. 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 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.
| Type | Radio transmissions wireless Speedlite transmitter |
| Transmission Range | Approx. 98.4 ft. (30m) |
| Flash Control | Ratio control: 1:8 - 1:1 - 8:1, power 1/3-stop increments |
| Coverage | 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). |
| Dimensions | 2.65 x 2.42 x 3.05" (67.4 x 61.5 x 77.4 mm) |
| Weight | 3.9 oz (110 g) excluding battery |
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