I have used different Olympus digital cameras, but the EXIF field "Doing" is not consistent in their images. This means that certain image management software groups them into different manufacturers, such as "OLYMPUS IMAGING" and "OLYMPUS OPTICAL", as well as simply "OLYMPUS".
So I want to examine a lot of EXIF image data, look for a "Create" tag that starts with "OLYMPUS" and change all the ones that say "OLYMPUS".
Is it possible to use only exiftool? I can do some bash or perl scripts, but I had the impression that exiftool could do this kind of thing on its own. I do not really want to start exiftool 400,000 times inside some other script if I do not have to.
Yes. I read The Fine Manual, but the ~ 80 page manual page for exiftool is quite intimidating, and I did not see this kind of functionality from the beginning.