Why can not I set the shutter faster than 1 / 125s in pentax 645z of the body?
Why can not I set the shutter faster than 1 / 125s in pentax 645z of the body? Once a shutter speed of 1/160, cited flash device can not be triggered? It seems there is no transmitter signal and 645Z body to communicate? This is a compatibility problem? Or in the 645Z's body can not achieve more than 1 / 125s shutter speed? I have bought a V6 but can not use the high-speed sync, I was just collapsed. Did I set the problem? Or you do not have this type adaptation 645z?