Quote Originally Posted by Mr.canon View Post
FTB? whats that? And how come that some of the cams tend to "eat" battery's
Check out this page from the Canon museum for more info on all "F" series cameras. Most of these will operate without a battery (the meter will need a battery, but the shutter won't).

http://www.canon.com/camera-museum/c.../series_f.html

Jim B.