Overlapping frames on Canonet G-III QL/17

Discussion in 'Rangefinder Forum' started by Tony-S, Aug 28, 2011.

  1. Tony-S

    Tony-S Member

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    My G-III QL/17 seems to have a problem with its film advance. Occasionally, frames overlap; on a roll I just processed, frames 3 and 4, 5 and 6, and 8-10 all overlap one another. Any idea what might be the culprit? I don't know the details on the quick-load system, but it seems that it may be slipping a bit early in a roll? If so, is this something that can be easily fixed by tensioning something?
     
  2. Newt_on_Swings

    Newt_on_Swings Member

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    You always want to turn the rewind spool a bit before you take a series of images and make sure it taught so you won't have really close frames. Helps a lot when cutting them. Try this next time. Another culprit may be the gearing, a previous repair job might have mixed up the mechanism. I have heard of specially modded full frame cameras that have their gearing replaced to give half frame spacing (with appropriate film mask in place). The konica autoreflex does this on the fly with a flick of a switch.
     
  3. narsuitus

    narsuitus Member

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    My two Canon QL17 GIII cameras also have uneven frame spacing.
     
  4. Anscojohn

    Anscojohn Subscriber

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    The little rubber pads of the quick-load system have a tendency to slip as they age. What we used to do was to gently roughen the surfaces up a little bit with a hard typewriter eraser.
     
  5. David Lyga

    David Lyga Subscriber

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    I use tape to be sure and secure. - David Lyga
     
  6. Tony-S

    Tony-S Member

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    What's a "typewriter"??? :smile:
     
  7. Tony-S

    Tony-S Member

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    So the answer seems to be loosening the tension of the spool. My overlapping frames are gone.