ISO doesn't show up for Leica M10 Monochrom DNG files.
Tim,
Well apparently this ISO value is formatted as a TIFF LONG not SHORT and we are being picky about the Exif spec for 0x8827 ("Photographic Sensitivity").
I'll relax the type check and then PM should then recognize the tag.
(BTW - The recommended tag is 0x8833 which is LONG type)
--dennis