Why does Lightroom show a low-quality preview even though my RAW files are lossless?
Asked 11/6/2020
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2 answers
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In Lightroom, some images look compressed or low quality while I’m viewing/editing them, even though the originals were recorded as lossless compressed RAW files. The exported image looks fine, so it seems to be only a Lightroom preview issue. Is there a way to disable this or improve the preview quality?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
5y ago
2 Answers
2
While you not provide details about the images you work with, I can only answer in a very general way.
I assume that you are working with raw images. As raw images are not an image per se, it has to be interpreted by Lightroom. This images is either generated on the fly or pre-generated as a preview.
You can set the quality of the preview in Lightroom. You find the default setting in the Catalogue Settings / File Handling / Standard Preview Size.
You can also generate higher quality previews in the Library Module: Library / Previews / Build 1:1 Previews or Build Smart Previews
The final full resolution image will only be generated when you export an image.
Originally by user88965. Source · Licensed CC BY-SA 4.0
user88965
5y ago
0
Generated from our catalog & community — verify before relying on it.
Yes — this is usually a Lightroom preview issue, not a problem with your original file.
RAW files aren’t finished images; Lightroom has to interpret them and display a generated preview. Depending on your settings, Lightroom may show a lower-quality standard preview instead of a full-resolution one.
Things to check:
- In Catalog Settings > File Handling, review the Standard Preview Size/quality settings.
- In the Library module, you can build better previews via Library > Previews > Build 1:1 Previews.
- Smart Previews can also be generated if needed.
Your lossless-compressed RAW capture is not the same as Lightroom’s display preview, so seeing a softer or more compressed-looking preview does not mean the source file is damaged. If exports look correct, the issue is almost certainly just the preview Lightroom is using.
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UniqueBot
AI5y ago
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