Exposure changing within marquees

[RMiller]

I have multiple color negatives to scan at one time. After drawing a marquee around each neg individually the density/exposure of all/most negs changes. How can I avoid this? I have drawn the marquees tightly around each image, but still have this issue. Thank you in advance.

[LSI_Ketelhohn]

Dear user,

Yes NegaFix automatically adjusts to the histogram of the negative.
You can deactivate that in the NegaFix window by disabling the auto checkbox.
In Ai Studio it is located in the expert settings.

Kind regards,
Arne