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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.
Green Light--Lit: Radio Transmissions Okay
Red Light--Lit: Not Connected
Blinking: Transmission Error/ Too many units (Master units + slave units = more than 16 units)
Orange Light--Lit: Sub-master transmission
Blinking: Receiving remote release shooting, linked shooting signal
|TYPE||Radio transmissions wireless Speedlite transmitter|
|TRANSMISSION RANGE||Approx. 98.4 ft. (30m)|
|FLASH CONTROL||Ratio control: 1:8 - 1:1 - 8:1, power 1/2-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|