I have a few concerns about what 4K format to use to shoot a feature length documentary film.
I'm using a GH4 and am undecided on what format I should choose. The plan is to edit the footage in a 4K timeline, and then export the film in 4K as well as UHD and 1080p.
The reason I want to film and export C4K is because the film is going to, eventually, participate to festivals, and there will be cinema screening. But of course I'll need to export HD, for TV screening, what happens then? You just export it as it is, or need to crop it for a 16:9?
Also a bit confused on frame rate, 24 or 23,976, or just 25p.