Panasonic Lumix S9 Owner's Manual page 355

Video Settings – Video Brightness and Coloring
•
When set to a 10-bit [Rec Quality], the setting items change to [0-1023], [64-940],
and [64-1023].
•
When [Photo Style] is set to [V-Log]/[REAL TIME LUT] (base Photo Style is
[V-Log]), this is fixed to [0-255] ([0-1023]).
However, even if [Photo Style] is set to [REAL TIME LUT](base Photo Style is
[V-Log]) or Photo Style is set to [V-Log] in My Photo Style, if the [Vlog_709] LUT
file has been applied, this is fixed to [16-255] ([64-1023]).
•
When [Photo Style] is set to [Like2100(HLG)], this is fixed to [64-940].
•
When [Photo Style] is set to [Like2100(HLG) Full Range], this is fixed to [0-1023].
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