Yongnuo YN-622 C YN 622C Single Wireless TTL Flash Trigger For Canon Camera Speedlite Compatible flash mode: E-TTL (II)/ Manual/ Multi "Compatible Shutter sync: 1st curtain, 2nd curtain,high speed sync (HSS/FP), Max 1/8000s sync speed " "Control remote flash using camera's flash control menu screen(Remote Control Mode) " Support E-TTL / Manual/ Multi flash mode mix using(Mix Control Mode) "Flash on hot-shoe of transmitter supports ETTL "