Just me - not a test. GH4 4K footage on a HD time line. No nothing.
based on this and the other stuff I did not bother to export
I like CineD between minus 3 to minus 5 on all.
Highlight / Shadow -5 +5
iDynamic low (need to test standard)
prob better to underexpose in bright sun
old GH2 kit lens and old Minolta 55mm 1.8

GH4 4K on HD timeline Highlight Shadow and scaling footage on Vimeo

how to embed vimeo?

With a slow pan & then with zoom.

4K to HD Pan & Scan on Vimeo