Lightroom 5: Export from Original and from Smart Preview render differently

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  • Updated 6 years ago
The problem described in is still the same in the final version.

Is it a bug, or is it a limitation of smart previews that one has to live with?

Edit: Correction: In the develop module, both original and smart preview seem to show the same tonal rendering now. But the exported files are still different like in the beta. Strange... like half of a bugfix?? Edit 2: Nope, false alarm: Still different in the develop module. What I saw seemed to be an outdated (normal) preview that was shown in develop with the original present again. Zoom in + out, and it was updated to the different original rendering again. This may also be the cause why Rob Cole didn't see any difference in develop at first (see end of other thread).

Additional Infos:
Windows 7, 64 Bit Version of LR5.
From the other thread:
Original file (convert to TIFF for testing):
Development settings: highlights -100, shadows +100, clarity +100.
Export comparison animation:
Develop module comparison animation:

Edit 3: Here is another develop module animation using a real-world image, toggling between the rendering of the original file and the smart preview. The photographic quality is rather low ;-), but it has some nice lights/shadows contrasts with areas of nearly blown-out sky. The original raw is a Canon CR2 with 10 MP.

Upper left: Default development settings. No differences visible (there are some differences in the details and sharpness, but these are OK because of the DNG compression).

Upper right: Highlights set to -100 and shadows to +100. Differences in tonality begin to show, also visible as slight deviations in the histogram. Note how the left clipping indicator reacts differently.

Lower left: Again highlights set to -100 and shadows to +100, plus clarity to +100. Differences are beginning to show clearly, also very clearly in the histogram.

Lower right: A little bit extreme: Like lower left, but all three settings repeated or "boosted" using a graduated filter with the same settings. The differences become very striking.
Photo of LRuserXY


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Posted 6 years ago

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