Focal lenght not found on exif

decentropy / photogrammetry

Python Photogrammetry Toolbox (formerly osm-bundler), for rendering a 3D pointcloud from photos of an object at different angles.

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Focal lenght not found on exif #2

Open sergio-omar opened 7 years ago

sergio-omar commented 7 years ago

Hi! I wanted to test photogrammetry toolbox but i got this issue: ' Can't estimate focal length in pixels for the photo'. Then I check the picture's exif data and indeed it says: 'focal length: 0'. Can you give me a hint how can i solve this issue? Do you recommend me to add this info to each picture?