Clarity 2012 fails with lens vignetting correction

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  • Updated 7 years ago
In LR 4.0:

I've notice this in quite a few photographs, especially when the lens has produced significant vignetting that is then corrected by the lens profile.

In these cases, the corners of the image brighten up quite a bit when using clarity. If I then turn off the lens profile correct, the behavior seems as expected.
It basically makes clarity unusable with manually compensating with some artificial lens vignetting.

No clarity, no lens correction:

100 Clarity 2012, no lens correction:

No clarity, with lens profile correction:

100 clarity 2012, with lens profile correction:

In fact, the whole image brightens up quite a bit too, corners stronger (problem was otherwise fixed from 4 beta).

My guess: standard clarity produces this behavior by default (boundary value problem of the algorithm), so a correction mask has to be applied to suppress the corner brightening. And this mask is probably not adjusted when correcting for lens vignetting.
Photo of slarti3


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Posted 7 years ago

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