The LCP files do indeed contain the ID, at least for the Pentax lenses.
It is absent from some (all?) Sigma ones. I recall there are some
conflicting IDs with third party lenses, presumably due to Sigma's
unwillingness to actually licence anything?
Anyway, If you look in, say, the Pentax DA 55 LCP file, you'll see:
<stCamera:LensID>8 226</stCamera:LensID>
So I guess one could put the same (but I suppose 8 8) in the appropriate
sigma file. Seems like you need to put it in every entry in the correction
table.
I have no idea if this will make it use this ID to identify the lens, mind
you.
- Peter
-----Original Message-----
From: Bruce Walker
Sent: Saturday, December 01, 2012 6:57 AM
To: Pentax Discuss Mailing List
Subject: Lightroom vs Sigma 18-250 question
Posting for a K-5 -toting friend (Gerrit Visser) who just got
Lightroom for Windows.
Gerrit asks ...
"The puzzle is why the Sigma 18-250 shows as Unknown lens in
Library/metadata while it is listed ok in Develop. The lens id is 8 8
which is in the exif, exiftools displays the correct lens etc.
Has anyone figured out where LR/Camera Raw keeps it mapping tables?
The .lcp files do not contain any information regarding the lens id,
only corrections. As an added twist, the release notes have the word
Macro in the Sigma lens name, while it appears nowhere else."
--
-bmw
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