ExifTool Forum

General => Metadata => Topic started by: 11august on September 21, 2017, 09:00:54 AM

Title: Lenses listing
Post by: 11august on September 21, 2017, 09:00:54 AM
Hello all!

For Lenses listing purpose (whatever the make is), I've extracted what I thought to be the most useful and reliable informations off the metadata of a great bunch of photos, but I'm not sure if this is correct:

.\exiftool -r -csv K: >out.csv -LensID -FNumber -FocalLength -FocalLengthIn35mmFormat -MinFocalLength -MaxFocalLength -Make -CameraModelName

Indeed, I was thinking about some other specific tags such as: "FocalLength35efl" or "LensModel"...

What are your advices for this list to be the most possible complete, exploitable and efficient?

Thank you! :)
Title: Re: Lens listing
Post by: Phil Harvey on September 21, 2017, 09:10:12 AM
FocalLength35efl is should be available for more images than FocalLengthIn35mmFormat, but may not be accurate (particularly if the image has been resized) if FocalLengthIn35mmFormat doesn't exist.

Use "Model", not "CameraModelName".

MinFocalLength and MaxFocalLength are only available for some models from a few select Makes (Canon, FujiFilm, Nikon, Olympus, Sony).  LensInfo is maybe a more general tag containing this information.

For images edited by Photoshop, you might want to include Lens.

- Phil