I realise that internally recorded 4K is 4.2.0.
There is an argument floating around that internally recorded 4K 4.2.0 material has enough colour information to create (through a transcoding application)- 1080p 4.4.4 or 1080p 4.2.2 files.
This theory has apparently been proven -http://www.eoshd.com/content/12594/exclusive-first-app-resample-panasonic-gh4-4k-8bit-10bit-444
I was just hoping I could do this with hardware instead of software.
Your entering into the crazy world of 4k or not, downsampling, mbs, compression, depth and of course look.
I strongly suggest not worrying about the numbers, just shoot, transcode out to pro res and dropping it into the free Di Vinci resolve.
Start messing with the footage and see how it hangs, holds and looks.
Numbers mean nothing without the look, or if you have alaising or just basic motion issues.
I haven't picked up my gh4 yet as I've been busy and don't need it this instance, but I'd love to see the look as much as the detail.
If it looks like my REDs the sony F65 (much more expensive cameras) I'll be over the moon, regardless of the numbers.