Yongnuo First Wireless E-TTL Flash Trigger YN-622 C is Released now, it's designed for Canon Camera.
Using Digital FSK 2.4GHz frequency band with 7 channels, it has three mode, E-TTL ( II ), Manual and Multi, and it can fire flashes at 360 degree direction, the operating range is 100 metres.
It supports FEC, FEB, FEL, High-speed Sync, 1st. Curtain, 2nd. Curtain, Modeling flash, ETTL II Group Ratio (ALL/A:B/A:B C), Manual/Multi group (ALL/ A:B/ A:B:C), Manual and Multi mode, Auto Zooming, Manual Zooming, AF Lamp.
Compatible flash mode: E-TTL II / Manual / Multi
Compatible shutter sync: 1st curtain, 2nd curtain, High speed sync (HSS / FP) Max 1/8000s
Control remote speedlites using camera`s built-in flash menu
PC port can output 1st / 2nd / HSS signal to trigger studio flash
Supports Flash Exposure Compensation (FEC)
Supports Flash Exposure Bracketing (FEB)
Supports Flash Exposure Lock (FEL)
Supports flash zooming (auto, manual)
Supports modeling flash
Supports E-TTL group ratio (ALL / A : B / A : BC)
Supports Manual / Multi Group (ALL / A : B / A : B : C)
Supports live view triggering
Supports assist focus lamp
Supports high-speed continuous shooting trigger
Speedlights on hot-shoe of transmitter supports ETTL
Compatible with all YongNuo / Canon EXII series speedlights
Settings saved automatically
Support single-contact camera & speedlite triggering
2 x RF-622 C transceivers
1 x Instruction in English and Chinese
1 x Original Yongnuo Box