Bug 180322

Summary: compute 35mm equivalent focal length
Product: [Applications] digikam Reporter: Julien Narboux <Julien>
Component: Metadata-EngineAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: wishlist CC: ahuggel, caulier.gilles
Priority: NOR    
Version: 0.10.0   
Target Milestone: ---   
Platform: Mandriva RPMs   
OS: Unspecified   
Latest Commit: Version Fixed In: 4.0.0

Description Julien Narboux 2009-01-11 12:42:25 UTC 
Version:            (using KDE 4.1.3)
Installed from:    Mandriva RPMs

Hi,

It would be nice if Digikam could compute the 35mm equivalent focal length of   pictures when the field is missing in the exif.
For instance if you take a picture using Canon EOS 400D at 20mm , it should fill in the 35mm equivalent focal length field of the database with 32=20*1.6.
Here is a database of camera sensor sizes released under creative commons, it may be useful for this wish: http://www.autopano.net/wiki/Cameras.txt

Julien
Comment 1 caulier.gilles 2009-02-06 09:46:16 UTC 
Andreas,

This is definitivly a job for Exiv2. What do you think about ?

Gilles
Comment 2 Andreas Huggel 2009-02-06 10:44:02 UTC 
Yes, I agree with this one. See bug #138704, comment 24.
Comment 3 caulier.gilles 2013-11-21 22:30:48 UTC 
35mm focal length eq. is show since a long time by Exiv2 in digiKam metadata viewer.

Gilles Caulier