COMPATIBILITY: Canon EOS R3 / EOS R6 Mark II / EOS R8 / EOS R7 / EOS R10 / EOS R50 / EOS R1 / EOS R5 Mark II SUPER-COMPACT: Taking power direct from a compatible camera’s Multi-function shoe, the Speedlite Transmitter ST-E10 is small, lightweight and unobtrusive, unlocking a whole new world of creative, off-camera lighting. ADVANCED WIRELESS FLASH: Control up to 15 Speedlites up to 30m even outside. 2.4GHz radio frequency triggering operates reliably and supports wireless second-curtain sync and power levels down to 1/8192. DURABLE & WEATHER RESISTANT: Featuring the same level of weather sealing as the latest Speedlite flashguns, the Speedlite Transmitter ST- E10 is durable and robust enough to take on even the most demanding of assignments. EASY TO USE: Press the MENU on the Speedlite Transmitter ST-E10 to bring up the Speedlite settings menu on the camera’s LCD, allowing you to easily and quickly configure and adjust your lighting setup.