Feature #768

Reading focal length in 35mm equivalent from Canon's EXIF

Added by Sergey Salnikov almost 8 years ago. Updated almost 3 years ago.

Status:ClosedStart date:19 Apr 2011
Priority:NormalDue date:
Assignee:Robin Mills% Done:


Category:withdrawnEstimated time:1.00 hour
Target version:0.26


It seems to me that Canon cameras don't write a tag called Exif.Photo.FocalLengthIn35mmFilm, from which exiv2 tries to read focal length in 35mm equivalent.
However, exiftool can read this value from Canon's EXIF too:
Scale Factor To 35 mm Equivalent: 1.6
Focal Length : 18.0 mm (35 mm equivalent: 28.3 mm)
Lens : 18.0 - 135.0 mm (35 mm equivalent: 28.3 - 212.3 mm)

It would be nice if exiv2 was able to determine this values too.


#1 Updated by Robin Mills over 3 years ago

  • Target version set to 53

#2 Updated by Robin Mills over 3 years ago

We need a test image to investigate this.

#3 Updated by Robin Mills almost 3 years ago

  • Category set to metadata
  • Status changed from New to Assigned
  • Assignee set to Robin Mills

This issue has been in the database for 5 years and nobody else has requested progress with this matter. So, unless you engage to persuade me to keep this matter alive, it will be closed on April 30 as “no longer needed/wanted.

#4 Updated by Robin Mills almost 3 years ago

  • Category changed from metadata to withdrawn
  • Status changed from Assigned to Closed
  • Target version changed from 53 to 0.26
  • % Done changed from 0 to 100
  • Estimated time set to 1.00

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