622c-tx Controller

The 622c-tx controller gives you the control you have always wanted over your speedlights when being used off camera. Simply pair it with a 622c transceiver and you are ready to rule the world of Off Camera Flash. You can control up to 3 different groups of speedlights in TTL mode or manual mode or a mixture of the two. Everything is controllable from the zoom of the flash head to the power output even High Speed Sync (if your speedlight and camera have the ability). One of these is a 'must have' when doing OCF...

See how to use it right here - How to use the 622-tx