For my home movies even 720P is sophisticated (1080 take tons more space and edit time, IQ looking close to 1080...) quality for 55" TV viewing.
Just interesting to ask what program do you use for 4K edit and (definitely you have 4K TV set) and how much space (in GB) may take , let say , 10 min home movie in 4K ? (should be 30-50 GB easily right?)
To me 1080 are maximum what should be in photo camera, 4K may be in dedicated camcorders for professionals/...
Al.
I edit videos in Adobe Premiere Pro - CS6 at home, CC at work.
The size of the file is going to depend upon your video bitrate, and to a small degree the audio bitrate. The Sony AX-100 creates 60Mbps files, and the GoPro Hero 4 also outputs 60Mbps files. However, once you defish the Hero 4 files you have two output choices, either MOV or AVI, thus far I've only used the AVI files, but these are 450Mbps and not handled well by Premiere Pro. I need to check the MOV version and see if Premiere Pro handles that better.
I don't much like the Hero 4, the software is junk (crashes all the time and reports false errors like "insufficient disk space" when there's 100GB spare and the job is only 12GB) and even the 450Mbps file should run much better than I'm seeing because while large it's small compared to my storage IO bandwidth capability.
The Sony AX-100 files on the other hand are beautiful, well that is at least if you tripod shoot everything and switch off the image stabilization as that makes a horrible warping mess of the footage (at least the one I used did, although to be fair it was bad enough it might have been broken)
So, to answer your question, 10 minutes at 60Mbps would be 4.5GB which is nothing really. Most of my 1080P/60 home video is output at 60Mbps min, 100Mbps peak. So in H.264 format I would really consider 60Mbps a minimum for 4K/30 if you don't want to lose too much quality when re-encoding.
Roland.