Lightroom: Photo previews display blurry in Library module unless I zoom in and back out

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  • Updated 6 years ago
  • (Edited)
Photo previews display blurry in Library module. A workaround I found was to zoom in to 1:1 size and then zoom out. This however is too time consuming for attempting to go through 100's of images.

Catalog Settings/File Handling/ 1440 pixels, High
Display: 27in (2560 x 1440)
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Maria Nino

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  • frustrated

Posted 6 years ago

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jdv, Champion

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What version of Lightroom?
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Rob Cole

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Consider deleting your previews and regenerate.

(delete '{catalog} Previews.lrdata' folder in with your {catalog}.lrcat file)

You can let them regenerate automagically or force the issue using Library menu -> Previews -> Render...
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Maria Nino

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John,
it is version 3.6.

Rob,
thanks for the suggestion. I have not tried this yet, but will report back once I do. I have about 50,000 photos in the catalog, and am worried this may take too long.

What I have done so far is to work around this by hiding some of the panels which I usually have displayed. This forces the program to regenerate previews, and they come out fine. This is faster then having to zoom in, wait for 1:1 to be generated, and then zoom out and wait for the new preview to be generated.

Thanks for the quick responses.
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Rob Cole

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Good to hear you're better. Sounds like it is a preview problem.

You don't have to regenerate all 50,000 previews to test whether doing so would solve your problem.

Just rename the preview folder so Lightroom can't find it (I don't *think* its being tracked on Mac(?) - if it is, you may have to put it in the trash), then regenerate a handful, and see if it helps. If it doesn't help, then delete the new test preview folder and rename the original preview folder back to what it was. If it does solve the problem, then consider regenerating overnight...

PS - Close Lightroom before renaming / deleting preview folder.

Rob