November 25, 2015, 06:58:21 PM

Author Topic: lightroom 4 5dmkIII raw now supported download the release candidate here  (Read 4584 times)

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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?



  • Rebel T5i
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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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