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When is preview size relevant?

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6 comments

  • BeO
    Top Commenter

    I think you named it, performance was probably the main reason back in the days, or still is today with slower machines or notebooks.

    Then there is the functionality to take a catalog with previews with you for metadata edits but also image adjustments without the need to have the raw files at hand, and you can very quickly export your previews at its size incl. adjustments via the JPG QuickProof recipe/format, and 5k for example is plenty enough for a website.

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  • Jerry C

    So, if you don't have access to the RAW files, you would see the difference as you lower preview size.

    In my case, the catalog and the referenced images are on an external very fast OWC NVME SSD and backed up to another SSD. This makes for a very portable system with redundancy. 

    Going down a couple of levels below the recommended preview size should not make a noticeable change and would save a lot of room on the SSDs.

    Addendum: I regenerated all images from 5140 to 3840 and saved 50GB with no appreciable change in quality or  time to view full resolution image. 

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  • BeO
    Top Commenter

    Why not 640?

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  • Jerry C

    Why not 640? In case I have a problem with or forgot to pack the external SSD and have to use the copy of the catalog on the laptop to show on a 4k monitor. I could probably go down another level.

    There are too many people who have sad stories due to lack of redundancy and backup strategies. Mine is the time I packed every bit of equipment I had for a trip to Sedona, but somehow forgot the camera body and had to make do with my iPad.

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  • BeO
    Top Commenter

    I see, then redundancy is another relevant case for a decent preview size, I misunderstood you would argue against a bigger size :-)

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  • Jerry C

    My argument is with the size bigger than needed for off line editing or display. In my case, I should not need it, but, you never know.

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