HLG mode allows for lower than Base ISO 800 settings in order to prioritize a low noise floor and a faster workflow (otherwise Log would be your best bet in post).
Same, although recently I'm now only HLG on my A7SIII because it has better shadow fall off as HLG3 tends to crush blacks according to Gerald Undone's tests. Also HLG3 seems to saturated while HLG is just perfect with less internal noise reduction. Difference between HLG and Slog3 in terms of clean dynamic range is 13 vs 12.4, but HLG seems to have more latitude and shadow recoverability so it's much better for run and gun and wildlife filmmaking when things aren't fully controlled.
@@Bo_Hazem I've tried using HLG, but I always run into the issue with horrible highlight rolloff. Every sunset shot is ruined, when in S-Log 3 it looks perfectly normal just like our eyes see it.
@@Arseny.Petukhov In HLG the trick is to expose for the highlights as its most powerful trait is preserving shadows. SLog3 has better dynamic range anyway, but not by a big margin. As for sunset it's better to stick to Slog3 or use HLG (not HLG3 or 2 or 1) and expose for the highlights and you should have creamy roll off. When you are 100% in control of the situation use Slog3, when running and gunning and you can barely think I believe HLG is a better solution as you can retrieve luminance easily in post due to HDR metadata with little to no noise. Play around with it and use DaVinci Resolve Wide Gamut for your color grading before outputting to Rec.709.
