Nikon has a way to enter a "comment" value in the back of the camera and have it stored in EXIF so I can read it off the image once I download it by referencing {comment}. I have to assume that Canon offers that same feature. How do I find that capability on a 1D MkIV? I've tried reading the manual for "caption", "comment", and "annotate", but no joy. Sports guys had to use this feature before voice memo recording was added to bodies. Trying to help a friend with workflow and can't figure out how Canon does this.
-Mike