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Exporting Variants as DNG

Eric Valk
Have I missed something or have I found a bug? Has anyone else had this behaviour?

When I try to export a variant in DNG format, I get a CO message "Could not process file" and "Processing to DNG not supported"

I've tried files coming from JPGS and RAWS, from Panasonic cameras and Nikon cameras.

I've even found an old DNG somewhere, and found that I can import it to a new empty catalog, I can edit it, export the original (as DNG). but I cannot export the variant as DNG. "Processing to DNG not supported" What ???

Are there any settings that might be affecting this? I have tried unchecking all the Metedata fields and it seems to make no difference.
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Comments

6 comments

Date Votes
  • Ian Wilson
    Moderator
    Top Commenter
    Isn’t a DNG essentially a type of raw file? So it couldn’t really have adjustments etc baked into it.

    Ian
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  • SFA
    As far as I recall C1 offers to convert a RAW file to DNG (an alternative RAW format) but, as Ian has said, it's not intended to be used for creating RAW type files from edited originals.


    HTH.


    Grant
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  • Permanently deleted user
    Hi,

    The native RAW format of my camera is DNG, and when I try to export a variant (e.g. converted to B&W) to a DNG, I just get my original picture. The adjustments are not taken into account, while there are, of course, when I export as a TIFF or a JPEG.
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  • Permanently deleted user
    Sounds like you're exporting the DNG, vs "processing" using a recipe. DNG's a Raw format and can't embed adjustments. In your case, the camera's using DNG as its Raw format, so when you export as DNG you're exporting the original image.

    If you want to include adjustments, click the "package as EIP", or else "Include Adjustments". The former will make C1-readable files, each containing your DNG + C1 adjustments. I don't know of other apps that can read EIP, though. The latter will export your DNGs as they are, plus a "Capture One" folder that has all the adjustments. You can then import both the files and adjustments into C1 on another machine and your adjustments will be as expected.

    As you noticed, when you "process" into TIFF or JPEG using a recipe, your adjustments get baked into the resulting image files.

    As a side note, I'd never "convert" my Raw files to DNG without also embedding the original Raw file (an option in Adobe's DNG Converter). Reason: "standard" DNG doesn't capture all of the metadata recorded by all cameras, so if metadata like which focus point was used (I forget which other ones aren't saved in DNG) are important to you, always embed the original Raw unless DNG is your camera's native Raw format as is the OP's case.
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  • Permanently deleted user
    Thanks Nature Isme,

    I know that, it was just an answer and a comment to the first post of this thread...
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  • Eric Valk
    Thanks all for your helpful comments.

    I opened a support ticket and received this helpful response (blank lines removed). Although sligtly ungrammatical the information is quite clear.
    [quote="Supporter" wrote:
    Capture One exports DNG as originally intended which is RAW.
    A demosaiced file can not become un-demosaiced to speak and hence not be processed as a DNG.
    I am aware that there has gone a bit deflation in the DNG format where it no longer is RAW and can now days be all kind of strange stuff such as linear demosaiced DNG which essentially is a TIF file in a DNG encapsulation.
    Why you would use this instead of TIF I am not sure.. Also it can be settings files and all kind of other things as well.
    But from what we support it is RAW format.
    Panasonic should work which it does not seem to do. Every other supported format do work as it should.
    We have now reported this to our development dept which should hopefully have this sorted soon.


    I tried to export Panasonic Raw files (RW2) from about 6 different Panasonic cameras ranging from early M43 years to the relatively recent GX8. All of them were unprocessed, and all failed. However, the DNG export worked for Olympus E-M1 variant.

    So there is likely nothing wrong with my COP installation or it's settings.

    I think the challenge for the Capture One R&D team here is that Panasonic RAWs, although not demosaiced, have compression applied to the RAW pixel data, and this would have to be undone to meet Capture One's "model" for DNGs. Although the decompression method is simple, it will not be the same as used by Nikon and Canon, and so will create extra work in coding and verification.

    As I don't use DNG format very often, and I can get a perfectly good conversion from Panasonic RW2 to DNG by DXO Photolab, I asked that they not pursue this issue, but rather they should include in the CO helpfiles the comments above regarding demosaiced files, and the limitation regarding Panasonic RW2 files.

    Over the past couple of years I have raised three tickets requesting that Capture One extract the Lens ID information from Panasonic JPEGs (which have never been acted upon), and I said that would rather the R&D team spend time on this.

    Ticket closed with no further comment.
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