8 Messages
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132 Points
Tue, Oct 2, 2012 8:51 AM
Lightroom: LR4.1 and 4.2RC do not correctly recognize lens info from Leica M Monochrom
Lightroom correctly identifies the attached lens on my Leica M9P but fails to do so on the M Monochrom. As such, Lens Correction is unable to automatically identify the lens, and needs to be manually set.
Here's what LR sees with the M9P. Notice it detects the Summicron-M 50mm f/2 correctly
Here's what LR sees with the M Monochrom. Notice that the lens info is missing
I thought this might be a problem with the info not being recorded in EXIF, but a check using M9Info (http://www.soens.de/swpage/swpage/m9i...) reveals that the info is in the EXIF for both M9P and M Monochrom files

Here's what LR sees with the M9P. Notice it detects the Summicron-M 50mm f/2 correctly
Here's what LR sees with the M Monochrom. Notice that the lens info is missing
I thought this might be a problem with the info not being recorded in EXIF, but a check using M9Info (http://www.soens.de/swpage/swpage/m9i...) reveals that the info is in the EXIF for both M9P and M Monochrom files
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8 years ago
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ghoonk
8 Messages
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132 Points
8 years ago
DNGs shot from the pre-production M Monochrom cameras running firmware 0.07 show the lens model correctly. The approx f-stop info is captured in EXIF but not reflected in LR.
DNGs shot from the shipping version of the M Monochromes running firmware 0.017 are not showing lens info or approx f-stop at all, even though that information is captured in the EXIF and not showing up in LR
However, using M9Info, all that information is correctly captured and reflected. It's just not showing up correctly in Lightroom.
If any LR engineers would like to look into this, I would be happy to share the DNGs for this to be resolved.
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john_verne
Champion
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704 Messages
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8.5K Points
8 years ago
Clearly, tools from Leica are going to know exactly how to find all the details. ExifTool can make a pretty good guess, and might even eventually release a point version that knows all the special cases. Other apps not dedicated to just reading metadata have to apply a set of heuristics, unfortunately. In my experience, Lightroom will leave some metadata blank if it can't make a good determination.
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ghoonk
8 Messages
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132 Points
8 years ago
Do you reckon that this is a problem that needs to be handled by Leica, or if it is something that Adobe would handle in a LR update?
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madmanchan
Employee
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629 Messages
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11.5K Points
8 years ago
Thanks.
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ghoonk
8 Messages
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132 Points
8 years ago
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