Is this from my scans or camera?

[Harry]

@Digitizer describes how to make a Radial mask here:

Vignetting Driving Me Nuts, Looking for Advice

Tried the radial filter, which made a big difference, even with a closed aperture. [Screen @ 2024-12-21 um 00.25.10] This is how I made the filter/mask Display a reduced view of a blank capture of the backlight (Kaiser Plano in my case) Draw a radial mask, circular in my case, that extends from corner to corner Reduce exposure until the center and corner brightnesses are about the same and let the histogram guide you: the narrower, the better Adjust mask feathering until brightness is abou…