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Platographer
Participating Frequently
June 14, 2024
Question

How to Change Raw Files Imported as .dng to .DNG?

  • June 14, 2024
  • 1 reply
  • 785 views

For some reason, rather than just naming raw files imported as DNG with .DNG extension, LR Classic gives a choice as to whether to use .DNG or .dng. Unfortunately, I didn't realize that and so all of my imported photos are .dng. How do I tell LR Classic to change the already imported raw files to .DNG? It should be easy for LR Classic to do so since it is just changing the case of the extension, but I can't figure out how. Thanks.

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1 reply

john beardsworth
Community Expert
john beardsworthCommunity Expert
Community Expert
June 14, 2024

LrC doesn't allow you to do this. You would have to do it outside LrC, for example using Adobe Bridge (which is free and useful in its own right).

 

Assuming you have done some work on the dngs in LrC:

  1. Select the files in grid view
  2. Ctrl S to save work back to the files
  3. In Bridge, select the files and use Tools > Batch Rename
  4. In its New Filenames section, choose current filename, Name and Original Case
  5. Start a new line and choose current filename, Extension and Upper Case - notice the Preview section in my screenshot
  6. Remove them from Lightroom UPDATE, MY ERROR
  7. In Lightroom, synchronize the folder and reimport the files

 

Do this on a small folder, and folder by folder until you have the idea. This method will preserve almost all of your LrC work - though not VCs, assignment to Collections.

 

 

P
PlatographerAuthor
Participating Frequently
June 14, 2024

I have not made any adjustments on any of the files yet. This is a new catalog. I imported and assigned them to collections. I don't want to lose that work. Is it really necessary to reimport after doing the batch change in Bridge? What reason would LR have not to accept the .DNG files as identical to the ones it gave the .dng extension to? I'm mystified that Adobe would provide the option between .dng and .DNG on import thereby creating this issue with no way to change the case afterward. That is such an odd decision by Adobe to not allow changing the case after importing without going through a circuitous process. 

john beardsworth
Community Expert
john beardsworthCommunity Expert
Community Expert
June 14, 2024
quote

Is it really necessary to reimport after doing the batch change in Bridge? . 


By @Platographer

 

If you don't do this, the files will have DNG extensions in Finder/Explorer but in LrC you will see them as dng.

 

As I said before, try it on a small folder to see if you like the results. But in general I'd just advise you to leave things as they are, and accept a few photos in the catalogue will be dng and others DNG.

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