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no Leica M lens profiles support with C1 Version 12?

happymac
Thanks to Phase One for releasing lens profiles for the most common Leica M lenses. 😄 😄 😄
But how can I adapt these profile to all my images in an easy way? Copy/paste from the lens correction tool seems not to work correctly.

My Canon lenses were automatically recognized. No additional action necessary...
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10 comments

Date Votes
  • SFA
    Are the lenses recognised when you edit new files?

    If not that suggests a problem to be investigated.

    Assuming lens identification is OK then going back to previously processed images individually may be required. The adjustments for most lenses can be quite complex taking into account aperture and other settings for example. This is especially true with zoom lenses and wide angle lenses.

    I could imagine that Copy and Paste lens settings might not be an option for a mass update. However I may be wrong.

    Perhaps someone with more intimate knowledge of this subject will drop in to this thread soon.


    Grant
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  • Permanently deleted user
    Hi,

    I have only Leica lenses. When I need a lens correction, I go the the tool, and chose, among all the lenses of the same focal length, the one I used. The lens is not automatically recognised in the tool (it is however in the EXIF), only the focal length is. I don't know if this a bug, but anyway, I have never used the tool as my Leica lenses don't need any correction 😄 Actually, I have "only" a 35 mm ASPH, and two APO-ASPH (50 and 90 mm), but I can understand that for shorter focal lengths it could be necessary.
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  • happymac
    Thank you all!
    Maybe some screenshots help to explain. The hole thing isn't a big issue, but it's bothering. And yes, correction even with Leica lenses is sometimes needed with my wide angle lenses and architecture (18, 21, 24 and 35 Lux ASPH.)
    The lens profile of Images from my Canon 5D Mk.II are automatically set... 🙄

    Exif:

    http://www.happymac.de/C1/Exif.jpg

    Lens profile after import:

    http://www.happymac.de/C1/Lens_profile_default.jpg

    Lens profile manually chosen from the menu:

    http://www.happymac.de/C1/Lens_profile_set_manually.jpg
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  • Christian Gruner
    The problem is that the Leica M mount can only recognize the lens by the 5 analog binary patches on the lens(-mount). This is interpreted by the camera body and stored in the text-string you see in Exif. However, CO does not recognize lenses this way, as it way too prone to errors.
    The Lecia M-mount also doesn't provide aperture info, so there's no way to automatically apply a lens-profile anyhow.
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  • happymac
    [quote="Christian Gruner" wrote:
    The problem is that the Leica M mount can only recognize the lens by the 5 analog binary patches on the lens(-mount). This is interpreted by the camera body and stored in the text-string you see in Exif. However, CO does not recognize lenses this way, as it way too prone to errors.
    The Lecia M-mount also doesn't provide aperture info, so there's no way to automatically apply a lens-profile anyhow.


    The exif is created by the software in the camera, which interprets a 6-bit code (!), which is part of the mount of the current lenses. The aperture is provided, too.
    The exif of the image I attached in my post is as follows (personal data was substituted by "x x x"):
    http://www.happymac.de/C1/exif_L1033224.pdf
    As you can see all informations are delivered including the unique lens name. I'm afraid, but I do not agree, that this "way is prone to errors".
    I would assume that Phaseone could use this information, but simply doesn't...
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  • Dave R
    It could be because Capture One looks in the metadata and sees "Elmar-M 1:3.8/24 ASPH" and can't find it in the database because there it is described as "Leica Elmar-M 24mm f/3.8 ASPH".
    This is definitely a problem to be raised with Phase via a support case.
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  • Christian Gruner
    [quote="happymac" wrote:
    The exif is created by the software in the camera, which interprets a 6-bit code (!), which is part of the mount of the current lenses.

    We are clear on that.

    [quote="happymac" wrote:
    The aperture is provided, too.

    The aperture is on some Leica M's indeed supplied, however, you will see that this is somewhat qualified guess, and by no means always correct. This functionality has been removed on newer Leica M models.

    [quote="happymac" wrote:
    As you can see all informations are delivered including the unique lens name. I'm afraid, but I do not agree, that this "way is prone to errors".
    I would assume that Phaseone could use this information, but simply doesn't...

    This is our practical experience so far. It is much more rigid to identify via lens-id's, which we do for all lenses in the profile-database.
    You are more than welcome to file a feature-request for a rework. The more requests we get for this, the higher impact the request will have.
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  • Christian Gruner
    [quote="David532" wrote:
    It could be because Capture One looks in the metadata and sees "Elmar-M 1:3.8/24 ASPH" and can't find it in the database because there it is described as "Leica Elmar-M 24mm f/3.8 ASPH".
    This is definitely a problem to be raised with Phase via a support case.


    As mentioned, Capture One does not identify lenses upon the string in Exif, but a deeper lens-id.
    A string containing the lens name is simply not robust enough for auto-detection.
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  • Permanently deleted user
    [quote="Christian Gruner" wrote:

    The aperture is on some Leica M's indeed supplied, however, you will see that this is somewhat qualified guess, and by no means always correct. This functionality has been removed on newer Leica M models.


    Pfeeeww !! You know all the details !! Congrats !!
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  • happymac
    [quote="Christian Gruner" wrote:

    [quote="happymac" wrote:
    The aperture is provided, too.

    The aperture is on some Leica M's indeed supplied, however, you will see that this is somewhat qualified guess, and by no means always correct. This functionality has been removed on newer Leica M models.

    I’m afraid, but you are not up to date. Leica reintegrated this feature with it’s last major firmware update to their latest models (M10, M10-D, M10-P) due to many user requests and it had never been removed on other models of digital M cameras.

    [quote="Christian Gruner" wrote:

    [quote="happymac" wrote:
    As you can see all informations are delivered including the unique lens name. I'm afraid, but I do not agree, that this "way is prone to errors".
    I would assume that Phaseone could use this information, but simply doesn't...

    This is our practical experience so far. It is much more rigid to identify via lens-id's, which we do for all lenses in the profile-database.
    You are more than welcome to file a feature-request for a rework. The more requests we get for this, the higher impact the request will have.


    OK — I see this point. But one pushes the problem to the other. Why not use the core information of the string as well as Leica itself uses this e.g. for camera internal correction of vignetting.
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