Lens vignetting correction is destructive

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  • Updated 2 years ago
I noticed that the Lens profile correction's vignette correction acts destructively on RAW images, affecting negatively on dynamic range, particulartly on highlights. The image below shows how highlights data in peripheral (vignetting-corrected) parts of the frame is lost when the correction is applied, compared to the non corrected (slider all way to the left) image.
Can you fix this problem and make the vignetting correction tool non destructive?
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Salvatore Di Renzo

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Posted 2 years ago

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Steve Sprengel, Champion

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Vignetting-correction brightens the periphery of the lens circle by the amount the lens darkens it regardless of what the subject is you're photographing because the darkening is not related to the subject, only the lens.

How would your image be different if brightening the edges of the lens circle acted how you think it should? 

Are you expecting the vignetting-correction to happen at a different place in the image pipeline, perhaps before the highlight compression occurs, and maybe it is happening at the beginning, but I'm trying to understand what it is you want to be different.