YONGNUO YN 622C TX LCD Flash Transmitter for Trigger Canon DSLR Camera

LCD screen display, multi-buttons quick operation, The firmware can be upgraded through the USB interface Support wireless shutter release function, The focal length (zoom) of the A/B/C three groups of flash can be adjusted separately Equipped with the AF focus assist light (can be disabled), Grouping flash mode: TTL/Manual flash/Super sync Supporting mixed use of the A/B/C three groups of flashes with TTL, manual flash, or Super Sync flash mode, The exposure compensation or flash output of A/B/C three groups of flashes can be adjusted separately Shutter Sync: first curtain sync, second curtain sync and FP high-speed sync, the highest sync speed is 1/8000s