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Canon ST-E3-RT Speedlite Transmitter

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  • For Speedlite 600EX-RT and 430EX III-RT flashes
  • Two-way transmission up to 98.4' away
  • Compact design
  • 8 types of custom functions
  • E-TTL II flash, manual flash, stroboscopic, auto external flash metering

The Canon ST-E3-RT Speedlite Transmitter enables two-way wireless transmission up to 98.4' to support multiple flash metering options and a variety of flash modes. The compact design and reliable construction make this a must have for professionals seeking advanced flash photography set ups. The transmitter allows you to take full advantage of all the features of Canon's Speedlite 600EX-RT and 320EX III-RT flashes.

The enhanced communication design allows transmission at a 360 degree angle. Up to 5 groups or flashes can be controlled via 1 transmitter to control E-TTL II flash, manual flash, stroboscopic or auto external flash metering. The LCD panel on the transmitter displays important information and the control panel is backlight for easy operation in less that optimal lighting conditions. The ST-E3 RT supports 8 types of custom functions and 3 types of personal functions. 

In the Box
  • Canon ST-E3-RT Speedlite Transmitter
  • Soft Case
  • 1-Year Limited Warranty
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More Information
SKU 56407
Brands Canon
MPN 5743B002
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 degrees 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)
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