"Enable Profile Corrections" Seems to Increase Exposure

[Paul_DS256]

Lightroom Version Number

LR Classic 9.0

Operating System

1. Windows 10

I took some pictures with my Sigma 10-20 lense on my Nikon D5300 for the first time in a long time. When I apply "Enable Profile Corrections" it seems to increase the exposure yet there no change in any of the sliders. I don't remember seeing this behavior before. The attached pictures don't show the difference a much as I see on my screen. Screen shots taken using Snipping Tool from the DEVELOP module screen.

I have the setup as DEFAULT. The make and model of lens is correct. The profile selected is "Adobe(SIGMA 10-20mm F4-5.6 EX DC HSM, NIKON CORPORATION).

The correction for the lens appears to be correct. It's the increase exposure I don't understand.

I've looked through the FAQ and Getting Started as well as quick search through the forum but didn't find anything explaining what I'm seeing.

Any ideas?

Thanks

 

[Jim Wilde]

Enable Lens Profile Corrections will remove any lens vignetting, which with some lenses can give the effect of the exposure being increased.

 

[Johan Elzenga]

If the profile corrects for strong vignetting, then this can indeed look like an exposure correction.

 

[Paul_DS256]

Thanks for the explanation.