35mm cameras with no sprocket teeth

[tribal-warrior]

The vast majority of 35mm film cameras in my possession have sprocket teeth for perforated film. There are some 35mm cameras with no sprockets – handy for unperforated film. Though in my opinion, it's not much of an advantage (how super rare would it be to come across unperforated film?)

Not too long ago, I was watching a youtube video made by a guy who reckons that 35mm cameras with no sprockets would increase the chances of overlapping frames on a film. Just wondering if there is any truth to that? Medium format film doesn't make use of sprockets / perforations and Ive shot a fair bit of that with a Yashca TLR and a Koni Omega Rapid and Ive never experienced frame overlap issues.

 

[MartinN]

I had once a worn Pentacon Six. It did not overlap frames, but instead created overly large, inaccurate and inconsisten frame spacings. Wasted film, and I was told unrepairable. On the other hand, I had an all electric Pentax MZ5 that had sprockets, but the transport gears (plastic) broke, and I was told it was unrepairable.