Wirelessly activating 15 Speedlites via radio transmission enables an endless amount of imagination when it comes to off-camera flash photography. The torque of the wheel-type dial was reduced, making it easier to turn. Together with the dot-matrix LCD display, the ST-E3-RT (Ver. 3) has an intuitive user interface.
These features are made available in the Speedlite Transmitter ST-E3-RT (Ver. 3)* in order to increase the Speedlite EL-1’s capabilities.
You are able to wirelessly trigger up to 16 compatible cameras at once in order to capture the same subject from several angles at the same time.
*able to be used as a Transmitter/Receiver unit.