Quote Originally Posted by benjiboy View Post
If you buy one "Unseen" mail order from ebay or elsewhere Jeff especially if it is fitted with the motor drive, but even if it Isn't you need to ensure all the covers on the base of the camera are available with it, because without the cover the camera isn't light tight.
I've just checked my F1 manual, It's actually the rewind cover that if removed will expose the film, but Canon recomend all three covers on the bass be left on if the motor drive is not fitted.