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01-29-2012, 08:11 PM   #1
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Firing a shot without a lens?

I don't want to waste a shot with my Pentax 645 to answer this question.

Will the 645 fire off a shot if there is no lens on the camera? If not do adapters like the kiev 88CM move a lever or short out contacts to tell the camera there is a lens mounted?

Thanks in advance

01-29-2012, 08:24 PM   #2
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Couldn't you try it with no film in the camera?
01-29-2012, 09:27 PM   #3
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I just verified with mine. The 645 will:

  • With no back attached fires @ 1/1000s with or without lens mounted.
  • With an empty back it will not fire, period.
  • With the test back/cover operates as if it had film loaded, and it will fire without a lens attached.
01-29-2012, 10:16 PM   #4
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QuoteOriginally posted by Venturi Quote
I just verified with mine. The 645 will:

  • With no back attached fires @ 1/1000s with or without lens mounted.
  • With an empty back it will not fire, period.
  • With the test back/cover operates as if it had film loaded, and it will fire without a lens attached.
I was under the impression and i may be very wrong. but that the test back would fire shots without a lens attached however the camera knows its a test back (no attempt to wind the film i think but then i could be wrong) whereas with film it may not.

01-29-2012, 10:49 PM   #5
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It's running the motor, whether it has the film advance engaged I can't see (obviously).
01-29-2012, 11:08 PM   #6
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QuoteOriginally posted by Venturi Quote
It's running the motor, whether it has the film advance engaged I can't see (obviously).
Thanks Jim
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