Buy on Amazon : http://www.amazon.com/gp/product/B00LZVX5C8?tag=catfoodrevi0a-20
Yongnuo 1pc YN-622C-TX 3pcs YN-622C E-TTL Wireless Flash Controller Wireless Flash Trigger
Flexible LCD menu control supporting mixed use of the ABC three groups of flashes using E-TTL manual or super sync flash mode can be adjusted the exposure compensation or flash output of each group
It supports setting different zoom of the three groups of flash the remote-controlled distance can reach 100M supporting seven wireless channels and ABC three groups
Equipped with the AF-assist beam emitter Supports USB firmware upgrade
Shutter Sync first curtain sync second curtain sync and FP high-speed sync the highest sync speed is 18000s
Support wireless shutter release function
