OK this whole issue of dry-firing or not has got me interested. I know I am a sad git!
So far we have the following views: P30T will dry fire regardless of film presence or misfeeds MZ-M will dry fire regardless of film presence or misfeeds MZ-50 will only dry-fire with an empty film chamber, misfeeds or misloads lock the camera MZ-30 ditto MZ-5N ditto MZ-S ditto Z1 (p?) from Jostein - it will only fire with an empty film chamber Z1P from Mike - it wont fire without film Dave Mann - Oh yes it will as long as there is an empty film chamber! 67 will dry fire with the 'frame counter trick' Any others? The Z1/Z1P is the really interesting one!!! I also don't understand why the MZ-M would work differently to the MZ-5N??

