Request 4K 10-bit 4:2:2 internal for the DVX200!

[Thomas Smet]

I see. It's H.264 compression that's the problem in that example, not 8-bit 4:2:0? So the solution for less banding in internally recorded footage is a higher bitrate (say 200Mbps in 4K)?

It isn't really just a bitrate issue either. More to do with the nature of H264 encoding. Moving to intra-frame H264 might help. Like the 200mbit mode on the GH4 but 4k would need a much higher bitrate than 200mbps.

4:2:0 can cause a slightly increase in color banding on its own but it is very minor and you would have to push the color way more than 50% in order to see it. Within any normal levels of color correction you will never see it. The example from that video was an unrealistic extreme case to help market the Shogun.