Canon Speedlite Transmitter ST-E3-RT

Speedlite Transmitter ST-E3-RT

Fire compatible Speedlite flashguns over distances of up to 30m. Radio-frequency control provides reliable operation even when direct line of sight is not possible.


  • Radio frequency remote flash trigger
  • Fire selected Speedlites from 30m away
  • Part of the E-TTL II flash system
  • Controls up to 15 flashguns
  • Remote camera triggering
  • Weather sealed against dust and moisture.

Detailed Features

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Product Specification

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