I don't have much expeirance with flashes so..
I had 60D nad YN-568 and as I remember I was able to put the flash in the slave mode and fire it up from the camera. The camera had buit in wirelles flash control.
I saw this YN-622 came up. I plan on buying 5D Mk III, but I still don't quite understand the flash part.
I understand one can put YN-622 on 5D mark III and use it as a trigger, but do you have to have it on each flash?
For example, if I had three flashes, would I have to put it one each flash and on camera? ...a bit confused.