Sidewinder
Member
Wow that sounds really good, I had a Canon 50E SLR with eye-controlled AF point selection through the optical viewfinder. That was back in ~1995, so almost 20 years. It actually worked quite well for me, but it was only for 3 focus points, so of course not high res or anything.
The later model EOS 3 had 45 selectable AF points:
"The EOS-3 inherited a refined version of the Eye-Control system of the EOS-5. This system, when calibrated to a given user, allowed for picking one of the 45 points of the autofocus system simply by looking at it though the viewfinder. An infrared transmitter and receiver mounted around the eyepiece monitored the position of the iris, thus "knowing" where the photographer was looking and focusing on that point. The system has its limitations however, notably eyeglasses and occasionally contact lenses would confuse the system. This feature was never rolled forward to the later 1V body."
http://en.wikipedia.org/wiki/Canon_EOS-3
The later model EOS 3 had 45 selectable AF points:
"The EOS-3 inherited a refined version of the Eye-Control system of the EOS-5. This system, when calibrated to a given user, allowed for picking one of the 45 points of the autofocus system simply by looking at it though the viewfinder. An infrared transmitter and receiver mounted around the eyepiece monitored the position of the iris, thus "knowing" where the photographer was looking and focusing on that point. The system has its limitations however, notably eyeglasses and occasionally contact lenses would confuse the system. This feature was never rolled forward to the later 1V body."
http://en.wikipedia.org/wiki/Canon_EOS-3