Capture One Pro 12-Slow loading metadata

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Ian Jukes

• December 01, 2019 02:11

Can anyone explain how Capture One Pro 12 can take 23 minutes to load the metadata from 500 images?

I love the way Capture One Pro 12 renders my images, but it is often so slow. It always seems to be generating previews too. Why? I just imported a completed session into a catalog and it needs to generate previews again, why? Shouldn't they already be included in the session?

I use Photo Mechanic 6 purely to speed things up.

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  Ian Wilson

  • December 01, 2019 08:50

  Capture One catalogs do generate their own previews, even when you import the images from a session which will already have previews. Of course, the previews in the catalog are stored inside the catalog, whereas the previews for the session are stored in subfolders of the image folders. But I too have wondered why it can't just copy the previews from the session folders. However, despite that, I would not expect 23 minutes. What is your setup? What computer, what version of MacOS, where are the images stored (inside the catalog, or outside and if so on an internal or external drive)?
  
  Ian

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  Marco Hyman

  • December 01, 2019 23:13

  The documentation warns about setting the Auto Sync Sidecar XMP to Load or Full Sync as it will slow down image import. That is an understatment. It brings image import to a crawl.
  
  I haven't tested if the combined time of first importing then selecting all images and Load metadata is any faster than doing it all at once. I hope it is.

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  Ian Jukes

  • December 02, 2019 06:30

  Thanks for the replies! I just turned off Auto Sync Sidecar XMP. My session was once again happy, all the labels and star ratings set in Photo Mechanic 6 were correct, as is the metadata.
  
  I just did a test. I added GPS data via Geotag Photos Pro 2 and then hit Image > Load Metadata. Once again, very slow, 6 minutes for 190 images. Capture One Pro 12 also decided to create new previews. Why? all that changed was GPS data!

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  SFA

  • December 02, 2019 11:53

  [quote="Manalishi" wrote:
  Thanks for the replies! I just turned off Auto Sync Sidecar XMP. My session was once again happy, all the labels and star ratings set in Photo Mechanic 6 were correct, as is the metadata.
  
  I just did a test. I added GPS data via Geotag Photos Pro 2 and then hit Image > Load Metadata. Once again, very slow, 6 minutes for 190 images. Capture One Pro 12 also decided to create new previews. Why? all that changed was GPS data!

  
  
  I would guess that the amended source file will be recognised as "changed" (i.e. not the same file as was previously known) with no easy way to assess what has changed - could be a completely different file - so the regeneration occurs.
  
  DId is actually regenerate or did it just update the working records in memory cache?
  
  
  Grant

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