Lightroom: Add function "Convert *from* DNG".

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  • Updated 5 years ago
Some people convert to DNG, then run into trouble (generally due to software compatibility or lack thereof) and want to convert back.

Others never convert to DNG, because they don't want to run into a problem and not be able to convert back.

Consider implementing a feature to convert from DNG back to original RAW format.

This would obviously benefit the users who've realized it was a mistake for them to convert to DNG, but perhaps more importantly for Adobe, would allow people to try DNG without fear of being locked in.

Ability to obtain original raw from backup as well as from DNG (embedded) should be supported.

PS - A side benefit of this feature would be to support creating a DNG profile for a non-DNG raw, since user could convert to DNG, create the profile, load the profile into Lightroom, then convert back.

See related question: http://feedback.photoshop.com/photosh...
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Rob Cole

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  • might try DNG if I knew I could get back...

Posted 7 years ago

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Victoria Bampton - Lightroom Queen, Champion

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I would imagine that a tool called "convert from DNG" would confuse far more people, since reverting from DNG would only be possible if the original raw was embedded or otherwise available. People could be misled into thinking it's possible to recreate a proprietary raw from a basic DNG, which would be pointless engineering time even if it was possible.

On the other hand, I could imagine a tool that could replace database entries pointing to DNG files with another extension. That would allow users to reconnect their backup proprietary formats with their correct place in the database.
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john beardsworth

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"On the other hand, I could imagine a tool that could replace database entries pointing to DNG files with another extension. That would allow users to reconnect their backup proprietary formats with their correct place in the database."

I agree that's the better direction but that tool should be a third party plug-in. Any Adobe feature should be based on EXIF data, not merely file names. This wouldn't just address the current problem of reverting. (TBH do a significant number of people really *need* to do this after having created DNGs in quantities beyond those needed to test the workflow and then done so much editing work on the DNGs for reversion to be truly painful?) But basing the Adobe feature on EXIF would also allow users who have changed filenames after importing to reconnect to the second copy made upon import - and that's a much more real problem.
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Victoria Bampton - Lightroom Queen, Champion

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Agreed 100%

A beefed up 'find missing files' may be the best direction for this. What if you removed the DNG files and put proprietary raw in their place (ideally with matching names, but even just matching exif) and it asked if you'd like to relink with the matching raw.

I agree not many people will do it on a regular basis, but I do think Rob's right that more people would be willing to try DNG if there were a way back.
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Rob Cole

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Maybe it should be called "Revert from DNG" instead (or how-about "replace DNG with original raw"...).

Perhaps Adobe can think of a better name. But regardless of what its called, it seems like worthwhile functionality to have around, even if it was a use-at-your-own-risk not supported app forever in beta in the labs, like the DNG Profile Editor...
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Rob Cole

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I really wish Adobe would consider this feature.

It would be pretty-darn easy to implement, and then I (and many other like-minded individuals) could advocate use of DNG without reservation.

As it stands, I would never recommend DNG to anyone (except for lossy DNG, which offers features unobtainable via any other format).
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Rob Cole

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One can now revert from DNG using

UnDNG
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