Hi Phil,
This Tag stores the setting for the 'Highlight Shadow' -Menu
where you can adjust a Tonecurve in upper and lower half by -5 .. +5.
1st signed short is for the Highlights .. 2nd is for the Shadows.
Tested on GX-8.
Greetings from Germany
-Klaus
Great, thanks! This will be decoded in ExifTool 11.07 as "HighlightShadow".
- Phil