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08-07-2011, 07:35 PM   #1
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A question: Existing Lightroom Catalog and converting PEF to DNG after the fact

Has anyone converted a LR catalog's images from PEF to DNG *after* working the catalog? I looked in at multiple locations but most references were about converting while importing, not quite what I'm looking at doing.

I want to know if it's possible to easily reassociate the new DNG images into the same catalog, being able to reapply your work to the new file. Or, if there's another way to go about this.

Clarification: I'd rather use the stand-alone Adobe DNG converter and convert a bunch of files overnight than manually pull individual catalogs and convert within LR.

08-12-2011, 07:18 AM - 1 Like   #2
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You can do this in Library View in Lightroom.

Select the images you want to convert > Click the Library tab in the menu > click Convert Photo(s) to DNG.

Choose appropriate settings in the dialogue box that appears, including 'Delete Originals after successful conversion'.

You will have to do nothing else, the catalog deals with this change automatically.

I do this on a regular basis, converting .PEF to DNG to save HDD space. It works faultlessly and there is no need to use the standalone converter.

EDIT: I just read that you'd prefer not to "manually pull individual catalogs", so why not have just one catalog. This area of Lightroom has vastly improved in Version 3, negating the need for mutiple catalogs.

Last edited by mannesty; 08-13-2011 at 05:16 PM.
08-14-2011, 08:54 PM   #3
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Hi Mannesty. Thanks so much for your input.

Lightroom limitations plus limitations imposed by our workflow would make keeping one catalog for all my images impractical.

This is primarily because LR does not allow for networked catalogs. Since my wife and I often work with the same job (not concurrently), I find it infinitely easier to create a catalog for each job, then when I'm done, I export it to our network repository. If my wife needs to work on the same catalog, she can grab it, then when she's done, she puts the current copy back.

It also makes it easier to recover should a catalog get "messed up" somehow as the damage would be contained to that one job.

Adobe just needs to give LR some networking functionality to the catalog. The data is small enough, that it could easily reside on the network while keeping the actual RAW files locally.

But at this time, it does seem easier to just reload the catalog and images and make the changes as needed, then resave. It will take time, but I'd rather do that than lose the catalog settings!

Thanks again for the input!
08-14-2011, 11:34 PM   #4
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Understood. Lightroom's inability to use a catalog across a network has caused me a few issues too.


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