Bussty
Well-Known Member
So I can confirm that in Photo Mode and using JPEG's there is no upside to using any of the auto modes in terms of Dynamic Range performance.
First image fully manual exposure

Second image ISO switched to Auto

Third image ISO and Shutter Speed to Auto

Fourth image ISO, Shutter Speed, Aperture all Auto

Doesn't seem to be an increase in HDR improvement on any of these so assuming this HDR benefit that you are seeing in d-log M is limited just to Video Mode.
First image fully manual exposure

Second image ISO switched to Auto

Third image ISO and Shutter Speed to Auto

Fourth image ISO, Shutter Speed, Aperture all Auto

Doesn't seem to be an increase in HDR improvement on any of these so assuming this HDR benefit that you are seeing in d-log M is limited just to Video Mode.