Actually the 1Dx II still image have more DR from 100 up to 400. Is in most test and having both 1Dx and 1Dx II the difference is there and quite a bit in shadow recovery. Of course not really a key point for the OP. I don't know what Andrew uses as NLE and machine but this is not correct at least for what I do almost every day. I can only speak for Resolve on Windows because this is what I use but Resolve handles 4k MJPEG super well. in fact there is no performance benefits in trans