Mamiya 645AFD loses contact with back

Discussion in 'Medium Format Cameras and Accessories' started by jrydberg, Jun 25, 2008.

  1. jrydberg

    jrydberg Member

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    I picked up a used 645AFD at an auction some weeks ago. After some days use it suddenly starts to lose contact with the film back. When it happens the AF also turns dead. Normally all that takes to fix it is to insert the dark slide, detach the back and re-attach it. But then the back can get a bit confused and start to wind the film (like when you've loaded it with a fresh roll).

    I've changed batteries of course. I've looked at the connections between the back and the body and they look nice.

    This really pisses me off I must say. Anyone experienced this?
     
  2. John Koehrer

    John Koehrer Subscriber

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    You might try cleaning the contacts with a Q-tip dipped In alcohol. Sometimes just the crap in the air we breathe will build up a thin layer of oxidation/tarnish even on gold plate.
     
  3. keithwms

    keithwms Member

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    Does it happen with another back? Do you have another to test it with?
     
  4. jrydberg

    jrydberg Member

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    I have two backs, and I run into the same problem with any of them.
     
  5. jrydberg

    jrydberg Member

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    I'll try that. Thanks.