Re: Sony Z7 and weddings

The biggest problem I've run into with flashes and CMOS (which the Z7 has, but not the Z1) is the rolling shutter, where the flash can get cut in half - i.e., the upper or the lower half or quarter of the picture has the flash, but the the other half/quarter doesn't. Often the flash gets split between 2 frames and is barely noticeable, even in a still frame, because the flash isn't on the subject in the shot. I've seen this intercutting CMOS and CCD footage together and needing to use the flashes as sync points.

Not sure how that impacts your aesthetic sense, it goes quickly in real time, but might not look good in slow motion. OTOH, most flashes wouldn't look particularly good in slow motion anyway (in my opinion).