Question about Mamiya 645AF Medium Format Camera

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Mamiya 645 af focus problem

Every so often when getting the developed film back the centre of the photo is slightly out of focus. It seems to be a random occurance as the shots either side are usually perfect. This is useing the 80mm af lens. Is this a lens problem or camera one? Anyone had similar problems?
Thanks Andy

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  • Andy Hughes
    Andy Hughes Dec 03, 2008

    Thanks Spotatohead

    The lens is ok. It seems to be a problem with the film not laying flat behind the lens. It seems to appear when the camera hasn't be used for an hour or so and on the frame that winds on after the shot has been taken. Is this a comon problem with the Mamiya AF camera.

    Cheers Andt

  • Timm Chapman
    Timm Chapman May 11, 2010

    Look at the rear glass of the 80mm lens? Any marks/fingerprints in the centre? If so, that might be causing it. Marks become more pronounced on film when the mark is on the rear glass closer to the film plane.

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