spacer
Member
Some of the early Canon film cameras are quite interesting. The EOS 750 takes the entire film out all the way onto the take up spool and as you shoot, it rewinds each frame back into the cartridge to prevent spoiled images if you accidentally opened the film door. Even if you opened the film door by accident, the rest of your roll was wasted, but everything you had shot was still good.
The X and Xs do the same thing. I'm still waiting on my A2E, but IIRC, it's the same way. I didn't care for it when I first got the X, but after a couple rolls, it was just so danged easy to quickly change film that I just shrugged and accepted it. Besides, I guess I didn't have any logical complaint about it anyway.