Thomas Smet
Veteran
Yes I have tried Vlog on the GH5S do not have on the GH5 and want to shoot both UHD 60P so not possible in HLG as this is only available on HDMI for external recording. When I get one I will try of course. I think that HLG is a little better as I have tried this for HD recording. Would love to just adjust in camera and save a lot of adjusting after. I shoot theatre so have NO control over lighting that is often LED these days. The Sony's seem to manage this better for the reds than the GH5's and that may be some of the issue. In pure white light then I do get the red's that I want. When do I ever get white light !!! However the colour shifts with LED theatre lights seem to bias the reds more for the GH5 than the Sony's turning them more orange/yellow. WB is pointless as the WB changes by scene and even within a scene so I set all cameras to fixed indoor WB and always need to adjust afterwards. I was just pointing out the one characteristic of the GH5's that the reds always appear orangish. Tried playing with WB but find it easier to adjust the reds in post rather than mess up the whole image !!!
Right there is part of your problem. The indoor presets are not the most accurate when it comes to color. They pick a typical average temp and go with that and very likely is no where accurate to what you need. While the Sony presets may get closer out of the box that doesn't mean they have better color. Just means the preset is more in line with your shooting environment. I only use the WB presets as an absolute last resort.
When it comes to a manual white balance for theater it is ok if different moments use different color lights. If a blue gel is used you want to capture that same blue. You white balance ahead of time for whatever would be the most neutral white light and then just let the different colors come in as they are. Honestly doing a white balance this way is not any worse than using the indoor preset because its pretty much what the preset is doing. By going manual however you may be able to start off with a more accurate base vs the indoor preset that is likely off from the start and never right during the entire performance.