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Missing previews

Discussion in 'Lightroom 1-6 for Windows & Mac (perpetual)' started by Kobus Reyneke, Apr 29, 2012.

  1. Kobus Reyneke

    Kobus Reyneke New Member

    Apr 29, 2012
    Lightroom Experience:
    Primary OS:
    Mac 10.7.x Lion
    I got a new Macbook Pro then imported my catalogue from the external harddrive where a backup was , but most of my previews are missing!
  2. Jim Wilde

    Jim Wilde Lightroom Guru Staff Member Moderator Lightroom Guru

    Feb 1, 2010
    West Sussex, UK
    Lightroom Experience:
    Primary OS:
    Mac 10.11.x El Capitan
    Lightroom Version:
    6.12 / CC 2015.12
    Lightroom License:
    CC Subscription
    Hi, welcome to the forum.

    Previews are stored by Lightroom in a separate sub-folder adjacent to the catalog. When you use Lightroom's catalog backup process, only the catalog and not the previews are backed up. So.....if you imported from a backup catalog, there likely was no corresponding previews folder. Not a big problem. as Lightroom will regenerate previews on the fly, though you can speed up the process by selecting all photographs and then going to the Library menu and select Previews>Render Standard (or 1:1) Previews.

    Of course, on a large catralog this will take some considerable times, so best started when you can afford to leave it alone (perhaps overnight).

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