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Todd Shaner
Todd Shaner
Legend
August 31, 2018
Open for Voting

P: Leica DNG Embedded Camera Profile Issue

  • August 31, 2018
  • 33 replies
  • 1175 views

[Feature request: The Embedded profile is hidden in the Legacy group, which is hidden by default.  The profile, which is assigned by default when a Leica photo is imported, should be appear in Favorites and also in a profile group that isn't hidden by default. See here for details:
https://feedback.photoshop.com/photoshop_family/topics/leica-m-262-dng-embedded-camera-profile-issue...
- John Ellis]

Leica M 262 DNG camera files display the 'Embedded' Profile when initially viewed in LR Classic 7.5 Develop module. When any other camera profile is selected the 'Embedded' Profile entry is no longer visible including in the Profile Browser. If 'Read Metadata from File' is invoked the 'Embedded' profile entry reappears and is selected. In addition if 'Save Metadata to File' or 'Update DNG Preview & Metadata' is invoked the 'Embedded' Profile selection disappears completely and is not recoverable using 'Read Metadata from File.'

LR 7.2 does not exhibit this behavior so it appears this "bug" was created in one of the LR Classic versions after 7.2. Please see this post in the Lightroom Classic forum for further information:

https://forums.adobe.com/message/10591309#10591309

    33 replies

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    benjamingordon
    Known Participant
    September 9, 2018
    This is happening with my leica m240 in lightroom 7.5
    please watch the screencast below:
    https://www.dropbox.com/s/kme5w19qpou0o5r/lightroomexposureissue.mov?dl=0
    Todd Shaner
    Todd ShanerAuthor
    Legend
    August 31, 2018
    I see the same results as you with no 'Embedded' Profile selection showing. I checked your DNG file and the downloaded files that show an 'Embedded' Profile selection using ExifTool. Your file has no XMP data as expected since it's an unaltered camera file. The downloaded sample DNGs with 'Embedded' profiles all have XMP data created using an "earlier version" of LR or ACR (LR 6.3 and ACR 7.0). So it appears something has changed in LR 7.3-7.5 since John Ellis doesn't see the issue using LR 7.2. ERGO–Bug!
    T
    TheBilbo
    Known Participant
    August 31, 2018
    After 5:00 here in CT and I have some family obligations, so going to shut down for now. I'll be interested in hearing what you see.
    T
    TheBilbo
    Known Participant
    August 31, 2018
    Imported into 7.5, still defaults to "Adobe Color" but it also shows the self-initiated color shift I wrote about earlier...hope you can experience it. It happens in the Develop Module, and I have not invoked any actions:

    https://www.dropbox.com/s/9s95bfsjt4g61ew/Screenshot2018-08-3117.09.23.png?dl=0
    T
    TheBilbo
    Known Participant
    August 31, 2018
    https://www.dropbox.com/s/xlv73ml1ybokdac/L1001977.DNG?dl=0
    Todd Shaner
    Todd ShanerAuthor
    Legend
    August 31, 2018
    OK, so you may have a 2nd issue. Please shoot a new DNG file on the Leica m 262, upload it to Dropbox or other file sharing site, and provide the share link in a reply here. Please do this BEFORE Importing the file into LR or opening it in Camera Raw. Then Import the file into LR and see if it is missing the 'Embedded' profile selection. I'll check it on my system. Thank you.
    T
    TheBilbo
    Known Participant
    August 31, 2018
    Todd, no that option is NOT checked, nor have I invoked the two other options you mentioned.
    Todd Shaner
    Todd ShanerAuthor
    Legend
    August 31, 2018
    Robert in your LR 'Catalog Settings' do you have 'Automatically write changes into XMP' checked? With this checked, OR invoking 'Save Metadata to File,' OR 'Update DNG Preview & Metadata' the camera embedded profile is no longer accessible (see below reply).
    Todd Shaner
    Todd ShanerAuthor
    Legend
    August 31, 2018
    Rikk there appears to be another related issue. The DNG Specification allows multiple camera profiles to be embedded in a single DNG file. Please see page 15 of Adobe DNG Specifcation v1.4.0.0. I'm fairly certain I was able to do this successfully in earlier LR versions (LR5 or LR6?).  This allows embedding multiple custom camera profiles into the DNG file using 'Save Metadata to File.' The DNG file can then be opened on a system that doesn't have these camera profiles installed and all of the embedded camera profiles will appear and can be used with that DNG file. Using LR Classic 7.5 only one (1) camera profile can be embedded into a DNG file.

    It would seem this is also required to support camera embedded profiles to allow updating the metadata with a different profile.  Without this capability the original camera embedded profile will no longer be accessible since it is not installed on the system.
    T
    TheBilbo
    Known Participant
    August 31, 2018
    Actually, my experience is that .DNG files from my M 262 import in LR 7.5 with "Adobe Color" selected by default, and "Embedded" not listed as an option. "Read metadata from file" has no effect, i.e., "Embedded" does not appear.
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