I did it myself with a meter. I'm sure it's not as good as a pro, but it looks much better than OOTB settings. Shadow detail is a lot better, and things don't look too dim like they did before. I used the attached excel sheet, and shot for around 2.2 gamma at 5 IRE (it turned out a touch higher). Then, I shot for 2.4 gamma for all other levels. Average came out to 2.36, and I like it a lot so far. I aimed for about 126 nits max white.That's a lot of 20-point adjustments. Was that ISF calibrated or did you do it yourself with a meter? Does that aim for a 2.35 or 2.4 overall gamma once it flattens out?
You could probably just use the adjustments I did at 5, 10, 15 and 20 IREs and get a better picture. I looked like the BT curve was actually too dark in the mid-IREs, so I had to boost luminance there a bit. At least that's what the meter said.
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