Biometric scanner on trigger (fingerprint) or viewfinder (retina) matches photographer to a preprogrammed library of photographers, and notes that person's name for inclusion in jpeg EXIF data or writing on the back of a print.
The applications are numerous, especially in my family, but awkward to describe. Suffice to say, sometimes you just wanna know.
Yes, I know the technology is still just over the hills.-- nilstycho, Jun 30 2004 Then you could be identified. I prefer anonimity.-- HalfBaker, Oct 04 2007 could this also be used to somehow authenticate weather images were taken by famous photographers? (you know, pictures of clouds and stuff)-- marklar, Oct 04 2007 random, halfbakery