[Digikam-devel] [digikam] [Bug 343080] New: Cannot find the right lensfun profile for RAW lens correction

[C. Priisholm]

https://bugs.kde.org/show_bug.cgi?id=343080

            Bug ID: 343080
           Summary: Cannot find the right lensfun profile for RAW lens
                    correction
           Product: digikam
           Version: 4.6.0
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: RAW files management
          Assignee: digikam-devel at kde.org
          Reporter: claus.priisholm at gmail.com

I have a Sony Alpha 5000 (SONY ILCE-5000) but it defaults to some Sony compact
camera when I go to use the automatic correction tool.
That is partly because the camera is not included in the lensfun db until
version 0.3.
I did patch relevant info from newest release into the
/usr/share/lensfun/mil-sony.xml (openSUSE Tumbleweed).
It was then possible to select the correct camera model in the automatic
correction tool, but the Lens-selector kept showing some lenses from the list
of compact-sony.xml.
I then removed the compact-sony.xml and restarted digiKam, now it is possible
to select correct camera model and the correct lens.

Reproducible: Always

Steps to Reproduce:
1. Patch the /usr/share/lensfun/mil-sony.xml with the SONY ILCE-5000
information from the latest version of lensfun (0.3.0 as of time of writing
this)
2. Open raw file (ARW) in image editor and import
3. Choose automatic correction from the tool selection.
4. Select Sony and ILCE-5000 (manuel selection needed, see comment below)

Actual Results:  
The Lens-selector shows some lenses seemingly coming from the list of compact
Sonys (compact-sony.xml).

Expected Results:  
The Lens-selector should show the relevant E mount lenses from mil-sony.xml
(and ditto sigma and tamron files)

It seems that the files are mostly the same though naming of lenses has been
changed slightly from 0.2.8 to 0.3.0 so the may be an issue. But on the other
hand, UFRaw can load the information even before I remove the compact-sony.xml
which somehow seems to confuse something in case of digiKam.

A change from 0.2.8 to 0.3.0 (at least for Sony) is that the name is now "Sony"
rather than "SONY". Digikam makes a distinction so there is now two entries for
sony in the list of vendors (but that probably goes away once all lensfun files
are version 0.3.0, but at least digikam should not be case-sensitive when
trying to match camera meta data to lensfun database)

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