Strange exposure compensation in PL5 (5.15.1)

In winter, I had accidentally set the exposure compensation incorrectly when taking pictures with snow. Instead of +EV to -EV. The display of these shots in DxO PL was strange. Now I made an exposure series of the same subject from -3EV to +3EV in steps of 1EV.

Representation FRV.

In PL set the preset “5-No correction” and opened the directory with the photos. The representation is as expected.

Now apply the “1-DxO Standard” preset to all the photos. The exposure correction is turned off. The display is as expected.


Next, switch on exposure compensation for all photos with correction “Center-weighted Integral”. The exposure correction of the photos is exactly opposite to the original exposure. The exposure is corrected with
+3, +2, +1, 0, -1, -2, -3.

If now the exposure is manually set to 50% of the original values. (+1.5, +1, +0.5, 0, -0.5, -1, -1.5) the exposure correction of the photos is OK.

Is this a bug or do I have a mistake in thinking?

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My first guess: Smart Lighting changes exposure unevenly for bright and dark parts of an image, similar to what a s-shaped tone curve would do.

Smart Lighting and Exposure always interact. Therefore I mostly use SL, when I use it at all, carefully and at low levels.


Your assumption is correct. SL was set to light (25). If SL is turned off, the exposure will be even.

Thanks, @Siggi. Please note that SL can also interact with vignetting correction occasionally. I had a few images that reacted strongly when image corners were in dark areas. in such cases, microcontrast and clearview added more issues. Using smart tools in parallel with “dumb” tools needs some extra care and/or attention.

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Hi @platypus, thanks for the valuable advice for me. Learned something again. :grinning:

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