My wife and I do a bit of wedding photography, and have been using remote flashes for a while for some great shots. She shoots 7D and I shoot a 5D II. We use the Yongnuo 622C wireless Tx/Rx boxes, one on the camera and one per remote flash. We use a mixture of Canon 430 EXII and Yongnuo YN-565 EX on each YN 622C.
Everything works fine. Well, it did until we tried to be clever. Initially only my wife had the 622C on her 7D and only she controlled the remote flashes. I just ran with a 580 EX II on my 5D II and had no remote flash control. I know that the 580 EXII can be used as a commander, but we bought it after the remote units and use it as an on-camera flash unit.
However, last week we tried to get clever. We both ran with a 622C on our cameras, so that both of us could use the remote lash units, and this is where problems arose. On taking a shot, one would trigger the other's on-camera flash as well. Not ideal.
I have tried to read the "chinglish" that the instructions are written in, and I thought I understood them, but I was wrong. I thought that I could set the flash remotes to work on 2 channels so that independent cameras could trigger them, but but I can't seem to get it to work.
Is there any way that we can set up a bank of remote flashes, each with a YN-622C unit attached so that they can be independently fired by two cameras, both with a YN-622C unit and a Canon 430-EX II on them?