When shooting analog, I've never even thought of needing or carrying a back up. I seriously have hundreds of analog bodies, and only bring one when I got out. My current daily carry is my Minolta HiMatic 7sII, and never even fathomed the thought that it may fail at some point.
Now if we're talking digital (which we aren't), I always have 2 bodies with me. Canon 50D is primary, and then either a 20D, Rebel XT (350D) or an old D60. Those I expect to fail at some point in their life simply because of all the electronics.
Now if we're talking digital (which we aren't), I always have 2 bodies with me. Canon 50D is primary, and then either a 20D, Rebel XT (350D) or an old D60. Those I expect to fail at some point in their life simply because of all the electronics.