I didn't know, but now I do - that the HD1000 uses CMOS rather than CCDs. The rolling shutter has a lot to answer for with those electronic flash frames.

I have never had much issue with the CMOS rolling shutter. The few times it has been overly noticeable to me the client didn't notice at all. I must say I am glad to not have any CCD smear issues, especially on live stage events with all the colored lights and strobes. But I guess I have been lucky with my wedding events that most of the photogs were discreet with the flashes. I have noticed a lot more rolling shutter flash footage on the news so maybe people are just becoming accustomed to it....

Well you need to take into consideration that the "general" public aren't as nit-picky as us. We do have the tendency to extract samples from almost every CMOS chip camera available that are exposed to flash photography, or similar situations, and analyze them in every way imaginable...from slowing them down to screen capturing the split screen.

The majority of clients won't notice the effect unless you point it out to them, otherwise to them it's just a piece of video with snippets of camera flash or strobes.

Very true! We do over-analyze but I have seen some footage on here that the photog must moonlight as a paparazzi because the strobes were insane! and the image was breaking down due to it but I have not had that happen to me before. CMOS can be a real trade off but the extended battery life and end of smear makes it a real upgrade for most of the stuff I shoot. To each, his (or her) own...