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Deleting Catalog Previews.lrdata

New Here ,
Apr 22, 2020

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Previews occupying 182 GB on HD(100,000+ photos all located externally).  I have read the posts associated with this topic, so am aware that it is okay to do, but was curious whether to delete entire folder or simply contents.  Seems banal, but giving me pause.

 

Thanks for any wisdom shared.

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Deleting Catalog Previews.lrdata

New Here ,
Apr 22, 2020

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Previews occupying 182 GB on HD(100,000+ photos all located externally).  I have read the posts associated with this topic, so am aware that it is okay to do, but was curious whether to delete entire folder or simply contents.  Seems banal, but giving me pause.

 

Thanks for any wisdom shared.

Topics

How to, Mac, Performance

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478

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LEGEND ,
Apr 22, 2020

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When you delete the previews, Lightroom re-creates them. So you really don't save much. You might want to change the options about how long to store the previews (for example, delete them after 1 month) or how large to make them.

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New Here ,
Apr 22, 2020

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Oddly, Sttings are to delete 1:1 Previews after 30 days, and quality is set to medium, and these sttings have been in place for ~18 months.

Hence, my confusion and desire to purge.

 

Further thoughts?  From my reading it seems that LR will only rebuild as needed and I dont often acces the oldest photos.

 

Thank you @dj_paige

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Most Valuable Participant ,
Apr 22, 2020

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"182 GB on HD(100,000+ photos all located externally)"

 

That sounds normal for standard-sized previews (less than 1.8 MB per preview).

 

Check that Standard Preview Size is set to no larger than the width of your display.

 

[Use the blue reply button under the first post to ensure replies sort properly.]

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