[Bug 220444] auto lens correction does not recognize a listed camera and lens using exif data

https://bugs.kde.org/show_bug.cgi?id=220444





--- Comment #16 from Manuel <kde 20 micorreo spamgourmet com>  2009-12-29 20:09:40 ---
(In reply to comment #9)

> Information taken from Exif to extract Lens info are processed by Exiv2
> library.
>
> Yes, we use Exif to identify Lens...
>
> Look code here :
>
> http://lxr.kde.org/source/extragear/graphics/digikam/libs/dmetadata/dmetadata.cpp#941
>
> But perhaŝ your model is not detected properly. Which Exiv2 version you use ?
>
> Gilles Caulier

Accoding to
QString DMetadata::getLensDescription() const
...
     lensExifTags.append("Exif.CanonCs.Lens");        // Canon Cameras
Makernote.
     lensExifTags.append("Exif.Canon.0x0095");        // Alternative Canon
Cameras Makernote.
...

Digikam gets
Exif.CanonCs.Lens                            Short       3  50.0 mm
Exif.Canon.0x0095                            Ascii      64  EF50mm f/1.4 USM

and omit

Exif.CanonCs.LensType                        Short       1  Canon EF 50mm f/1.4
USM

Which is more similar to editor plugin's lens list. I didn't rich the plugins
source yet so I don't know if it use another field to match the list

This USM lens does not match exactly any in the list, I'll look for another
example using camera kit

Later
Manuel

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