September 22, 2014, 08:34:29 PM

Author Topic: lightroom 4 5dmkIII raw now supported download the release candidate here  (Read 3790 times)


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EvilTed

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Here are two histograms from LR4 showing the effect of lens correction on the 50mm F/1.8.
The rest of the settings are unchanged and the CA checkbox has no effect.

Why would fixing the lens for what should be vignetting or barrel/pin cushion distortion change the histogram in this manner. It doesn't make sense to me?

ET

msdarkroom

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Vignetting is a darkening of the non-center portions of an image. Correction of this, by definition, would make the image brighter. That is what you are seeing on the histogram.


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