That's correct - I never have to physically touch the flash. But then you need to consider that I'm not leaving them for more than 10-15 minutes, so I haven't experienced a 'deep' sleep like the type that Chris Burch has described. Or maybe that issue has been resolved with the 568ex?The wake-up can happen from the camera position though, right? You don't need to physically touch the flash, correct?The issue I have with sleep mode on my YN-568ex is that when it goes to sleep, you have to fire a shot first before it wakes up. So you miss the first shot.The YN's do have an annoying powersaver feature, but it's manageable.
I am thinking about augmenting my two 580exII's with a couple of YN-560 or YN-568ex2 combined with my YN-602 and 622c's and get rid of my old Nikon SB-28's for background.
- What is the issue with the sleep-mode with the YN's?
BTW, the 622c is an excellent trigger - amazing really when you consider the price. I was using a Pixel branded trigger before, and couldn't get a shutter sync faster than 1/125th (on my 5D3). With the 622c I can sync at 1/200th easily and with HSS have shot at 1/2000th.