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toklas
Inspiring
November 28, 2023
Open for Voting

P: Don't import duplicates should recognize raw to DNG conversions

  • November 28, 2023
  • 2 replies
  • 370 views

When Importing Raw files from SD-card, the "don`t import suspected duplicates" feature doesnt work, if I had converted to DNG before.

Scenario: I shoot 100 photos in Sony Raw ARW. I import them onto my notebook. 10 files i want to keep and i convert them to DNG to archive the files. Later i shoot 100 photos more. For backup reasons i have not deleted the photos from the SD card yet. I put the SD card with now 200 photos into my notebook and check the box for "don`t import suspected duplicates" and Lightroom will import 110 photos, instead of 100. 10 photos will be duplicates, but in ARW and DNG.

2 replies

Rikk Flohr_Photography
Community Manager
Community Manager
November 28, 2023

If that is the case, I will kick this to Feature Requests and modify the title. 

Rikk Flohr: Adobe Photography Org
Rikk Flohr_Photography
Community Manager
Community Manager
November 28, 2023

Moving to discussions:

This is as-designed behavior.


For an image in your catalog to be considered a duplicate, it must:

  1. Have the Same File Name and extension
  2. Have the Same Capture Date/Time Stamp
  3. Be the same physical size on disk.

 

Your second import of the ten previously imported images fails on items 1 and 3.

Rikk Flohr: Adobe Photography Org
toklas
toklasAuthor
Inspiring
November 28, 2023

Understood, thanks for your quick response!
Can you move it to Feature Requests then?

Rikk Flohr_Photography
Community Manager
Community Manager
November 28, 2023

While I haven't tested it with Copy as DNG, I know this works under a Rename Scenario.

Import your images as raw to Lightroom without converting to DNG. 
After import, convert to DNG from inside of Lightroom 
Import the photos again - they should be recognized as duplicates. 


When you rename a photo on import, it comes into Lightroom as the new name. When you do it after import, it tracks both the old and new names.  It would be worth a try for your workflow to move the DNG Conversion to after import. 

Rikk Flohr: Adobe Photography Org