Yongnuo YN-622c Kit of 2 wireless transmitters full-TTL for Canon 600EX RT 580EXII 430EXII (Electronics)
tested with the YN TX 622c and a flash gun 420EX and YN 568II. The manual is in English or Chinese. But the figure of ModOp seem light up For. English is also understandable. Initiates high speed e-ttl. Also allows the setting from the control YN622C
