Fires up to 15 compatible Speedlite flash units at distances up to 30m.
The new Canon Speedlite ST-E3-RT (Ver.2) transmitter enables all wireless radio functions of the Canon Speedlite EL-1, including wireless second curtain sync, low power output (1/8192) and memory flash exposure (FE).
It also enables support for some of these additional features with other compatible Speedlite models.
The 2.4 GHz radio frequency activation is also reliable for shooting outdoors and close to corners, so a direct field of view is not required.
Triggers an EOS camera equipped with the ST-E3-RT Speedlite Transmitter (Ver.2) from a second unit or compatible Speedlite flash unit, such as Speedlite 600EX II-RT. Activation of up to 15 cameras simultaneously for synchronized shots.