Originally posted by liukaitc so if i have more than one yn560. all set as slave mode.
pop-up flash or any master flash can trigger them simultaneous?
If so, that would be cool..
Yes, and its even better than that. My Metz 48 and the Pentax 360 aren't rated as "master" flashes in PTTL mode, but their flash will trigger these manual flashes such as the yn560.
You could even fire a PTTL flash, master or not, on the camera in PTTL mode, which would trigger the remote flashes in manual mode, so you could do both at the same time. If the remote flashes weren't far enough away, you might have over exposure or maybe not. Just adjust and repeat - no big deal. My first yn560 should arrive tomorrow - looking forward to it