I purchased a tongnuo 622c TX and the 622c. I can't get them to work in HSS. Does anyone know what cameras and flash units are compatible? I just purchased a Flashpoint rovelight 600B from Adorama for the HSS feature. I read a review of the rovelight at http://flashhavoc.com/flashpoint-rovelight-rl-600-review/ and set up the 622c tx and 622c the way they instructed and the HSS doesn't work. I also tried with my godox speedlight and it still didn't work. Need some help.
There's a better manual than the one supplied with the triggers here: https://docs.google.com/file/d/0B77OmmGIg0gMVFpqNkpBYXBHajA/edit?pli=1 According to that PDF, HSS should be useable. Have a read. There may be some camera or trigger menu setting that you've overlooked.
Thanks, I read the read the manual and my camera's are suppose to be compatible but I still can't get the HSS to work.
I think HSS is spoofed in those triggers by delaying the trigger-signal based on the pre-flash timing. In other words the camera calls for a metering pre-flash, and a fixed time later the shutter opens. Firing the flash as soon as the shutter starts to open is the key to HSS (or Focal-Plane) synch. Do you have E-TTL auto flash enabled on the camera? I don't think it'll work if the camera is in manual exposure mode. What results are you getting? Totally blank frames? A small slit of the frame exposed? Or what?