Lightroom 6: No longer coverting RAW to DNG

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  • Updated 3 years ago
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When I tried to copy my Pentax RAW file as DNG in lightroom 6 I now get a "Non-raw files were not converted to DNG" warning and my files are copied not converted. My only work around is to use Lightroom 5 to import file and then load them using Lightroom 6. I have been using lightroom from the beginning and this is the first upgrade that I have any issues with,
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John Butler

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Posted 4 years ago

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Simon Chen, Principal Computer Scientist

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The process to convert RAW to DNG during import has changed a little bit in Lr 6.

In versions prior to version 6, Lightroom would copy and convert the raw to DNG as part of the same import process. In Lightroom 6, it would first copy the RAW as-is to your specified destination folder and then convert the RAW to DNG in place just like the Convert to DNG... command under the Library menu.

The advantage of this change is that the import process runs faster and you can start working with your raw images as soon as the raw files are copied over, while the conversion to DNG will happens in the background.
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JEREMY WILSON

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My thoughts too; that Adobe's rationale was that you can start work sooner!

I will try to see if it can be narrowed down to a particular action, as you say, like deleting rejects for example.

Interesting your thoughts on DNGs - reminds me of an article I read, giving all sorts of reasons for not converting to DNGs. Maybe a rethink coming up.
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Steve Sprengel, Champion

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Do the business requirements or testing plans have this deleted-while-background-conversion-occurring situation to be coded for and tested for or are such things left up to the ingeniousness of the coder to imagine and program for when under stress to get a release out?

This scenario should be easy enough for someone at Adobe to test: Copy-as-DNG Import a large batch of images, then ctrl/cmd-click every other one starting from the last to the first, and while the conversion is still occurring and a long way from completion (perhaps using a slower machine) do a right-click Remove from Disk on that set and see if the background DNG Conversion stops and/or the Remove stops because a filename has changed to be deleted.
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Simon Chen, Principal Computer Scientist

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I did a quick test on Jeremy's scenario on my mac. And I could not reproduce the issue (I tried editing in Develop, delete rejects etc). Lightroom behaves as what I would expected. All raws are converted to DNGs in the destination folder. There might be something else at play here. Is this on Mac or Windows?
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JEREMY WILSON

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It's on both a MacBook Pro and an iMac. Seems that I can get away with a few edits etc., but do too much, and it upsets things.
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Steve Sprengel, Champion

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I wonder if preview building is causing problems for background conversion like it does for file deletion. A way to test this would be to select all the photos in the filmstrip, turn on Auto Sync, and repeatedly make adjustments that affect all photos to see if you can get a preview building built for a photo that's being converted.
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Ken Blumberg

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I'm using LR 2015/16 which I set up to covert my RAW files to dng on import in preferences. That worked until this month. If this version of LR doesn't covert on import why is it still an option in preferences?
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Robert Cullen

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The Preferences [File Handling] does not turn on "convert to dng", it only sets the parameters that will be applied to DNG if you select "Copy as DNG" above the Import window.
The "Option" is in the Import Window.
And in Lr-v6, as stated above: The conversion to DNG occurs after the import of the original RAWs has finished. So- 'Copy as DNG' will import, then convert.
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Ken Blumberg

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Got it - Thanks