blaaberkat Posted July 17, 2022 Share #1 Posted July 17, 2022 Advertisement (gone after registration) Well this is technically a Lightroom question, but my Q2 files go from 80+ mb to 50 mb when I press the "Update DNG Preview and Metadata". Does anyone know if this is bad in any way? Thanks in advance Quote Link to post Share on other sites More sharing options...
Advertisement Posted July 17, 2022 Posted July 17, 2022 Hi blaaberkat, Take a look here Q2 files from 80mb to 50mb with "Update DNG Preview and Metadata" in Lightroom. I'm sure you'll find what you were looking for!
SrMi Posted July 17, 2022 Share #2 Posted July 17, 2022 8 minutes ago, blaaberkat said: Well this is technically a Lightroom question, but my Q2 files go from 80+ mb to 50 mb when I press the "Update DNG Preview and Metadata". Does anyone know if this is bad in any way? Thanks in advance Q2’s DNG files are uncompressed. The mentioned Lightroom operation compresses the DNG file losslessly. It’s not bad in any way. 2 Quote Link to post Share on other sites More sharing options...
blaaberkat Posted July 17, 2022 Author Share #3 Posted July 17, 2022 Oh that's what its doing. Thank you very much Quote Link to post Share on other sites More sharing options...
Phil1066 Posted August 15, 2022 Share #4 Posted August 15, 2022 I only came across this recently, in another forum. So pleased as I've always bemoaned the 80Mb+ DNGs compared to my old Sony A7R3 lossless RAWs at 40Mb. Storage is cheap YES but free NO. Haha. Quote Link to post Share on other sites More sharing options...
Le Chef Posted August 16, 2022 Share #5 Posted August 16, 2022 Can you batch perform this file size reduction or do you have to do it one image at a time? Quote Link to post Share on other sites More sharing options...
SrMi Posted August 16, 2022 Share #6 Posted August 16, 2022 1 hour ago, Le Chef said: Can you batch perform this file size reduction or do you have to do it one image at a time? Just checked that batch perform works. You can select all images to compress and invoke Update DNG Previews and Metadata. 1 Quote Link to post Share on other sites More sharing options...
SirBlunder Posted August 16, 2022 Share #7 Posted August 16, 2022 Advertisement (gone after registration) Any idea if there's a way to do this in Lightroom (not Lightroom Classic)? Quote Link to post Share on other sites More sharing options...
Le Chef Posted August 17, 2022 Share #8 Posted August 17, 2022 23 hours ago, SrMi said: Just checked that batch perform works. You can select all images to compress and invoke Update DNG Previews and Metadata. And I’m presuming the obvious that you could go through this procedure for any DNG images shot on any camera? Quote Link to post Share on other sites More sharing options...
SrMi Posted August 17, 2022 Share #9 Posted August 17, 2022 1 hour ago, Le Chef said: And I’m presuming the obvious that you could go through this procedure for any DNG images shot on any camera? Yes. However, some cameras, like the Leica M series, compress the DNGs before writing them out. In that case, I do not see any benefit in running the procedure. 1 Quote Link to post Share on other sites More sharing options...
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