Is this a good place to report bugs of that feature?
1)
When I select "fixed exposure shift" then the "Manual adjust" field isnt greyed out
2)
When I set that manual adjust field to -2 and then look at an image that normally is computed to +1ev compensation then the autoexposure when triggered results in a program state where the exposure correction field reads "-1" but the image brightness corresponds to +1. If I manually set exposure correction to -1 then it works correctly. If I set manual adjust to -.5 then the autoexposure resulty in a correctly applied +.05 exposure correction. On another image that normally results in +0.03, using manual adjust of -.3 results in the field reading -.27 but the image brightness very close like a value of zero, but not exactly, probably like +.03.
So it seems like when the "manual adjust" field results in an overall negative exposure compensation value then it doesn't get applied to the image (image shows as if manual adjust was at zero) but it does get correctly shown in the exposure compensation field.
I think there would be two different sensible behaviours in such a case: either apply the manual adjustment fully, resulting in negative exposure compensation, or clip the compensation at zero (assuming there is no highlight reconstruction or other way to get data beyond the normal clipping point (e.g. a mode that uses per-channel clipping points).
I'm not sure which would provide better exposure consistency when there is a series of images where some would result in negative compensation and some wouldn't. Probably depends on whether there are images where sensor clipping point has clipped more then the % of pixels used to compute the auto-exposure compensation.
Is this a good place to
Is this a good place to report bugs of that feature?
1)
When I select "fixed exposure shift" then the "Manual adjust" field isnt greyed out
2)
When I set that manual adjust field to -2 and then look at an image that normally is computed to +1ev compensation then the autoexposure when triggered results in a program state where the exposure correction field reads "-1" but the image brightness corresponds to +1. If I manually set exposure correction to -1 then it works correctly. If I set manual adjust to -.5 then the autoexposure resulty in a correctly applied +.05 exposure correction. On another image that normally results in +0.03, using manual adjust of -.3 results in the field reading -.27 but the image brightness very close like a value of zero, but not exactly, probably like +.03.
So it seems like when the "manual adjust" field results in an overall negative exposure compensation value then it doesn't get applied to the image (image shows as if manual adjust was at zero) but it does get correctly shown in the exposure compensation field.
I think there would be two different sensible behaviours in such a case: either apply the manual adjustment fully, resulting in negative exposure compensation, or clip the compensation at zero (assuming there is no highlight reconstruction or other way to get data beyond the normal clipping point (e.g. a mode that uses per-channel clipping points).
I'm not sure which would provide better exposure consistency when there is a series of images where some would result in negative compensation and some wouldn't. Probably depends on whether there are images where sensor clipping point has clipped more then the % of pixels used to compute the auto-exposure compensation.