Yongnuo YN-622N i-TTL Radio Trigger for Nikon - Flashlight Triggers with full Nikon i-TTL support. The receiver and transmitter of this synchronizer are interchangeable, that is, each device can be both a transmitter and a receiver. The Yongnuo YN-622N radio synchronizer allows you to remotely trigger flashes with i-TTL support, as well as work in manual mode. What will the use of the Yongnuo YN-622C radio synchronizer give you? Some pluses! In short, with the Yongnuo YN-622C Synchronizer, you can fill the frame with exactly the amount of light you need, without being distracted by exhausting flash rate adjustments, which will give you more opportunities for creativity or comfortable long-term work. The Yongnou YN-622C will allow you to remotely fire flashes with support for E-TTL (II) power control, high-speed FP or HSS sync, and 2nd curtain operation. Flash control will be available through the control menu on your Canon camera.