Color Management Bug: color changes despite same settings
I have footage from a Ronin 4D 8K camera which continued to look overexposed despite the raw footage having no such problem. Talking to the camera team, they said that the D-Gamut/D-log color space allowed for proper exposure on the footage while Rec.709.
No matter what I did in Lumetri though, the footage continued to look overexposed and I couldn’t even get it to look raw, due to the default Rec. 709 Media Color Space in Lumetri.
I started to get somewhere when I changed the color space of the source clip in the Effect Controls to D-Gamut/D-Log, like this:
With that setting in Effect Controls, the footage finally looked like its normal Raw self. Once I had it looking that way, I achieved the perfect look by just turning on Color Manage Auto Detected Log and Raw Media. I wanted to try it manually as well, and so when Auto Detect was checked off, if I overrode the Lumetri Media Color Space and made it ARRI LogC3/Wide Gamut3 (that’s the media color space that just really worked!), I had the same exact look as Auto Detect - which seemed to confirm to me that it was the right setting. This moment I have in screenshots below, but then as soon as I clicked on a different clip to try to replicate the results, these same settings created an entirely overexposed picture! And when I went back to this clip, it was also overexposed (Auto Detect or manually added) (screenshots below).
Any guesses for how to fix this issue? Leading up to this point I worked in the comments of another post, here is that for context
D-Gamut/D-Log applied in source effect controls and default Rec.709 in Lumetri (see effect controls below picture and Lumetri to the right):
D-Gamut/D-Log applied in source effect controls and Auto Detect turned on (perfect!):
D-Gamut/D-Log applied in source effect controls and ARRI LogC3/Wide Gamut3 applied in Lumetri (perfect and identical to auto detect - which confirms that's the right way):
D-Gamut/D-Log applied in source effect controls and Auto Detect turned on afterwards, now totally overexposed:
D-Gamut/D-Log applied in source effect controls and ARRI LogC3/Wide Gamut3 applied in Lumetri afterwards, now totally overexposed:
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