Image-ExifTool - Re: How to multiply an EXIF-value?

Posted on Fri May 25 19:21:25 2007 by exiftool in response to 5229 (See the whole thread of 5)
Re: How to multiply an EXIF-value?
Ah, the K10D. I'm thinking about buying one of these. Nice camera. I've had my hands on one and done a fair bit of meta information analysis on these images, so this camera is fairly well supported by ExifTool. There are constants that need to be applied to the maker notes FocalLength values, and sometimes these constants change from model to model, so I could see them being wrong for some models, but I wouldn't expect a problem like this for a well-tested model like the K10D.

So it's good to hear that it isn't a problem with ExifTool.

Cool command, btw. Interesting use of sed. But personally I would tend to use exiftool features rather than sed to accomplish as much as possible:

F="Pentax_K10D.jpeg"; FL=$(exiftool -FocalLength "$F" -s -S -n); exiftool -FocalLength="$((FL/10))" + "$F"

- Phil
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