Unknown Lens Sigma 150-600mm F5-6.3 DG OS HSM | S

[dvc]

Sorry for my English.
I installed Exiftool 10.12 version for OS X. I have a picture of Nikon camera. Although the program has a database record about my lens ('81 34 76 38 40 A6 4B 0E '=>' Sigma 150-600mm F5-6.3 DG OS HSM | S ', #Jaap Voets) when I look tags tiff file the program (the command / usr / local / bin / exiftool -s ~ / Downloads / 0067.tif) displays: Lens: Unknown (81 34 76 38 40 A6 4B 0E)
See Attach: https://drive.google.com/file/d/0B4ibY8BqxCcnNkwwQm9JM1VJcVE/view?usp=sharing

[Phil Harvey]

The sample picture no longer contains the Nikon metadata, so ExifTool does not identify the lens.  Someone has taken the Nikon LensID and copied it to EXIF:Lens with an older version of ExifTool, so this string contains the Unknown code that you mentioned.

- Phil

[Mees Dekker]

I have a slightly different observation, but it may be related. When I take pictures with a Sigma 150-600 mm f/5-6.3 DG Os HSM | S  (sports version), in the field LensID under "Other" it reads as "Sigma 150-600 mm f/5-6.3 DG Os HSM | C" (contemporary version). It should be the former version (S) and not the latter (C)

However: when I look under camera/LensID reads "183" and at camera/lens it is identified as "150-600mmF5-6.3 DG OS HSM | Sports 014". This same reading is found under image/LensModel.

Is there any confusion here or am I doing something wrong?

[Phil Harvey]

Hi Mees,

It looks like Sigma may have changed the LensType number for this lens (what Adobe stores as XMP-aux:LensID).  This has been reported as 172, but for your lens it is 183 which is the same as the contemporary version.

I'll add a patch to ExifTool that checks LensModel to disambiguate this lens.

Thanks for this report, and for the sample.

- Phil