Editing EXIF data

Using the ‘HI’ ISO setting on my D200 results in the ISO value being missing from EXIF as it somehow is not properly ISO 3200 but instead some equivalent. I still want it known from EXIF data that my goal was ISO 3200.

I got some Windows tool named Reveal (albumshaper.sf.net) but I don’t totally thrilled. Works. But not elegant. This piece of software uses an EXIF toolkit from http://www.exiv2.org/ named Exiv2. All open source and everything. I got it. Compiled it… Installed it.

There is a neat tool for fixing Nikon ISO values. I like that. But it might not always apply to what I am doing. Took a bit to figure out how to set ISO.

exiv2 -M”set Exif.Photo.ISOSpeedRatings <value>” mo <filename>

where -M is to indicate the next string enclosed in ” ” is the command

where mo is the command to modify exif data