Hello Pat, that works well and is very fast indeed. That downsize trick is a good one, when I do this in G’MIC with say 30 JPG’s, it crashes after a while. (No doubt there’s a solution for that with a resize at the beginning of a script).
For who’s interested, the -label field can be extended with some exif info:
-label ‘f - f/[EXIF:FNumber] - %[EXIF:ExposureTime]s’
gives dsc_1000.jpg - f/56/10 - 10/400s.
some more exif tags (iso, gps) on the ImageMagick site.
Anyone knows how to recalculate those last two values into 5.6 and 1/40, so that it says f/5.6 - 1/40s?