A video I shot in my office with my usual set up with the K3 III doing 4k/24fps. The lens was the 20-40mm @20, iso3200 f5.6 1/30th Kelvin WB Natural profile +1 sharp -1 saturation. Preset manual focus, which actually works better than anyone else's eye tracking moisture seeking uber focus systems.
I'm still tweaking the settings, but not too bad, totally usable. The crop is a pain and the 7-9 minute limit is a pain, but it works. I think I'm going to use 1080p and dial that in to see what the best quality I can get out of that is. The few videos that I've done in 1080p with the K3 III looked OK.
(***NOTE: The video is NOT about the video capabilities of the K3 III, only shot with the K3 III in 4K***)