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Last active June 14, 2023 21:04
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Lightroom CC/Cloud and Lightroom Classic synchronization
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lightroom-sync.md

How to use Classic and keep a cloud backup of full-size originals and videos

I have no interest in organizing using CC's Collections and prefer to use folder hierarchy from Classic.

  • Keep Import folder separate to catch problems! Preferences, Lightroom Sync, Location, Specify location for Lightroom's Synced images
  • Set Catalog Settings > Metadata > Automatically write changes into XMP so removing from Classic to add back some data is recovered
  • Video edits don't propagate, but if added to CC first, they can be moved among synced Collections

https://community.adobe.com/t5/lightroom-classic-discussions/persistent-sync-issues-in-lightroom-classic-with-dng-and-tif/m-p/13163319

Photos < 200 MB

I get rid of sidecar JPEGs. They sometimes confuse it.

Assuming your photos are already in Classic

  • Drag all photos under 200MB to "All Synced Photographs"
  • Wait for completion.

To find unsynced photos in Classic:

  • clear Quick Collection

  • Catalog > All Synced Photos

    • Edit > Select All

  • Catalog > All Photographs

    • Edit > Invert Selection
    • Add to Quick Collection

  • Catalog > Quick Collection > Library Filter > Attribute > Original Photos (hides videos)

  • Photos appear in CC under filter Sync Status -> Synced from Lightroom Classic

  • Import same photos to CC (beware of > 200MB, permanent sync error)

    • Photos disappear in CC under filter Sync Status -> Synced from Lightroom Classic
    • Photos appear in CC under filter Sync Status -> Synced and Backed Up

Mismatched adds to CC come back to Classic as virtual copies or to the designated Import folder.

Videos

I do one folder at a time.

  • Select videos in Classic
  • Remove from Lightroom (leave on disk). This makes them dangling files.
  • Import these videos to CC. (some HEVC silently fail; must upload from web)
  • Wait for videos to appear in designated Import folder
  • Delete dangling files from their original folder
  • Move them back to their proper location in Classic

They can now be moved to Collections and sync.

If Classic shows a greater count in a collection than CC, that video did not come from CC and is not synced.

(Is there another way to tell if a video came from CC?)

If a virtual copy shows up as "Synced from Lightroom Classic" then remove virtual and original from All Synced Photos then add them back, then add originals to CC.

exiftool "-DateTimeOriginal<CreateDate" VIDEO*.mp4 if it imports to CC as current time.

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