exiftool incorrect Light Value

[Hayo Baan]

I'm glad we're at least on the same page now.  I agree that this doesn't translate into actual light levels unless the image is properly exposed, and for my own purposes I adjust LV by the ExposureCompensation to take this into account when comparing light levels of different images.

Ah, yes. Forgot about ExposureCompensation. In that case, shouldn't LV take the ExposureCompensation into account? Then it truly is the light level (as the camera saw it, and only when not in M mode and not using auto ISO).

[WayneF]

Ah, yes. Forgot about ExposureCompensation. In that case, shouldn't LV take the ExposureCompensation into account? Then it truly is the light level (as the camera saw it, and only when not in M mode and not using auto ISO).

I say no to Exposure Compensation, which is just another way to tweak the camera settings and/or Auto ISO.  EC is already accounted for in the resulting camera settings.

[Phil Harvey]

I have never seen anyone else include ExposureCompensation in LV, so I don't think that ExifTool should do that.  However, one must realize the effect that it has on the computed LV.

- Phil