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Author Topic: ACR Lens distortion  (Read 2193 times)

stamper

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ACR Lens distortion
« on: November 05, 2011, 06:51:25 AM »

I have noticed recently when I set the exposure using the exposure slider to reduce the red clipping to just disappear - in an overexposed raw file - and then set the lens distortion setting to the profile suggested by Adobe then the clipping area reappears. Why should the profile affect the exposure of the raw file?

ErikKaffehr

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Re: ACR Lens distortion
« Reply #2 on: December 26, 2011, 02:25:36 AM »

Hi!

Vignetting corrects light fall of at the edges and corners. It functions as an increase of exposure. So it's affects exposure.

Best regards
Erik


I have just realised that there is a vignetting lightening process in the lens correction that is altering not only the dark areas but also the highlights?
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