Canon ST-E3-RT | BorrowLenses
Free UPS Standard Shipping On Rentals $149+ - See Details
Free UPS Standard Shipping On Rentals $149+ - See Details
Canon ST-E3-RT
Canon ST-E3-RT
Canon ST-E3-RT


The Canon ST-E3-RT is a wireless transmitter and power control unit designed specifically for Speedlites with radio transmission features, such as the Canon EL-1, the Canon 600EX II-RT, and the Canon 430EX III-RT. This transmitter is placed on the hot shoe of your camera where it will fire an off-camera flash, or group of flashes, and allows you to control flash settings right from the transmitter.


  • • 2 AA batteries are required to operate this transmitter. Batteries are not included.
  • • This transmitter is a radio transmitter only. It will not fire flashes optically.
  • • On pre-2012 Canon cameras, the maximum flash synchronization speed this transmitter supports is 1 stop lower than the camera's maximum.
  • • This transmitter is not compatible with Speedlite models without built-in radio transmission functionality.

  • • Canon ST-E3-RT Speedlite Transmitter

  • • Operating Range: 98.4'
  • • Controls Up to 5 Groups and 15 Speedlites
  • • Modes: E-TTL II, Manual, Stroboscopic
  • • Power Source: 2 x AA 1.5V Batteries (Not Included)
  • • Compatible with Speedlites with Radio Transmission Built-In


    Canon ST-E3-RT

  • • For Speedlites with Radio Transmission
  • • Wireless Firing & Control
  • • AA Battery Powered
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    $29.00 $299.00 Retail
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