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1 Message

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70 Points

Tue, Jun 2, 2015 10:55 PM

Lightroom 6: No longer coverting RAW to DNG

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,

Responses

Employee

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1.7K Messages

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32.4K Points

5 years ago

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.

Principal Scientist, Adobe Lightroom

5 Messages

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100 Points

It works for some RAW files, but most are still not converting to DNG! Not happy.

Champion

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2.6K Messages

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33.7K Points

According to the Adobe Employee's information, above, the raw files will be converted to DNG in the background after the import appears to be complete. If you let it run long enough will all the raw files be converted or does it stop with some sort of an error message?

5 Messages

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100 Points

Yes that was my understanding from Adobe too. However, it appears to stop at some point without any error message. I have files uploaded a couple of weeks ago from a shoot that have not converted (apart from a few) from NEF to DNG.

Champion

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2.6K Messages

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33.7K Points

I'd think that any conversions would have occurred all at one time, and not resume after restarting LR.

Does it do the first few and them stop, or are the ones that work scattered throughout the set of images with no apparent pattern?

Is there any other process, like Bridge or Finder/Explorer also open on the folder you're importing/converting to, that might be opening the files to render previews and preventing them from being converted? Along the same lines, is there a virus-scanner that might be doing the same thing? Try adding the NEF file extension to your virus scanner exceptions or at least temporarily disable any virus scanner or other internet security to see if it helps.

The old method of converting to DNG on the fly and writing the DNG file in the destination would only ever have one open/close of the file, whereas the copying the native raw file there, first, then opening that and converting to DNG and deleting (I guess) might get stopped by some other process also trying to open either the raw file or the DNG when it's half done.

Another area of questions would be what is your destination device/drive? I have heard of people having issues with RAID or other network-ish or NAS devices and files getting copied incorrectly. If it's an internal hard-drive that's less of a concern.

Adobe devised this two-step process to be faster and helpful, and must have tested it without any issues, internally, but obviously something is happening in your situation that they didn't anticipate and it'd be nice to understand what that is to see if it can be worked around, somehow.

If you are doing the conversion to somewhere other than an internal drive, maybe try doing it, there, once or twice, as a test, to see if the same problem occurs. That would help determine if the issue is device-type dependent.

5 Messages

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100 Points

Thanks very much for your reply. The converted files were scattered throughout the set of images, but now think that was maybe because I wasn't importing them in capture time sequence. I'm using a MacBook with no virus scanner and importing to the internal hard disc.

However, after trying to replicate the problem using my iMac with the same set of images, I first found that all the files converted successfully to DNGs, so thought the problem must be with my MacBook. BUT, when I repeated the process with another set of images 500+, and while still importing/processing, deliberately started tweaking, editing, deleting rejects etc. and other LR functions; when the LR processing was completed, I found only the first 21 or so files had been converted to DNGs and all others remained as NEFs.

So it would seem that the answer may be to leave things alone until the importing/processing has fully completed. Furthermore, I've now realised that you have to be in the Library 'Grid Mode' in order to select and convert multiple files to DNG, so that's not a problem

I remember with an earlier LR version, if I fiddled too much with images before all were imported, it would throw a spanner in the works and freeze up the process and I'd have to restart the import.

I wonder if you recognise / have experienced those issues?

Many thanks.

Champion

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2.6K Messages

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33.7K Points

Interesting that the reason given by the Adobe Employee for copying then converting in the background so you can start work sooner, is what is actually stopping the conversion. Of course copying then converting in the background makes the process slower.

I suppose the issue could be a new aspect of the OS that doesn't affect everyone and wasn't a problem with the Convert to DNG was first tested.

Personally I have never seen a good reason to convert to DNGs so don't.

Employee

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1.7K Messages

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32.4K Points

It might be interesting to see if "deleting rejects" while all these conversions are happening could be to blame. There might be some error handling issues (when the file went missing) when it tries to convert.

Principal Scientist, Adobe Lightroom

5 Messages

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100 Points

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.

Champion

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2.6K Messages

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33.7K Points

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.

Employee

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1.7K Messages

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32.4K Points

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?

Principal Scientist, Adobe Lightroom

5 Messages

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100 Points

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.

Champion

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2.6K Messages

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33.7K Points

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.

2 Messages

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70 Points

5 years ago

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?

238 Messages

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4.1K Points

5 years ago

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.

2 Messages

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70 Points

5 years ago

Got it - Thanks