Got it, thanks. For me, 4k is fun and great for some purposes but I usually prefer 1080 / 60 or 120 because of the smaller file size and because in lower light (indoors, natural), there is less real advantage IMO to 4k. I was pretty surprised to hear about the 4k crop and lack of 1080 / 120. I understand that it doesn't bother you, but It seems insane to me that one would not want THE OPTION to utilize the entire FF sensor they just shelled out for. That said, I can get by on 1080 / 60 with no crop. I'm interested in the 35 1.8 macro (pending reviews and analysis) if I proceed with this camera, so that will do fine without crop for my purposes (mostly video of family). If it is much like the 35mm F2 USM, I'll probably buy it.It only happens at 4K resolution.
I actually don't mind the crop on my 5D4. ¯\_(ツ)_/¯