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Control multiple flashes equipped with the YN-622C E-TTL II transceiver with the YN-622C-TX E-TTL II Wireless Flash Controller from Yongnuo. Compatible with Canon E-TTL II cameras, this controller slides directly into the hot shoe and utilizes a 2.4 GHz frequency with a range of 328' to trigger the remote flashes. The controller also has TTL, manual, and multi flash modes available for full creative control. Additionally, it can utilize 7 channels and 3 groups for setting up multiple flash units easily and efficiently.
The YN-622C-TX utilizes an LCD screen to display settings and allow users to make adjustments. On the device is also an AF assist beam to help in low-light conditions. Multiple sync modes are available for more specific needs or effects, including 1st and 2nd curtain sync. A high speed sync mode will help in bright lighting conditions and for stopping motion with a maximum speed of 1/8000 second. A built-in mini-USB port enables firmware updates to be installed, and the device runs on 2 AA batteries.