Question about Mamiya 645AF Medium Format Camera
I recently got myself a Mamiya 645 AF, it's a beautiful camera and worked like a charm the first couple of days, just as it should.
When I was on a trip and brought it with me in my backpack (loose, but carefully put in between some t-shirts etc.) I noticed when I took the camera out that the back door on the film back had opened, maybe it happened when I took it out, I don't know, but I closed it quickly, HOWEVER, when looking at the LCD screen on the back, instead of it showing the frame number it was showing this: -- , everything else seemed normal. I thought maybe it was because the back lid had opened or something, so I kept shooting, but the film never advanced to the end so I just took it out in dark and rolled it up manually, and there was clearly much film left.
When I put the next film in it would not even advance to the first frame, and it still shows the "--" on the back (I can still set the ISO settings) the camera just operates like it takes the picture, except for the film advancing. I have changed the battery in the film back, but still the same. I have also read the manual (and yes I have taken out the dark slide =))
Do anyone know what might be the problem? Is there something simple I'm just missing?
The battery in the film back is only used to supply power when the back is off the camera, when it is on the body power is supplied by the six batteries in the body so try them and also make sure the film insert is properly seated.
Posted on Apr 05, 2010
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Posted on Jan 02, 2017
From the manual:
"If the error display is not canceled when the shutter release button is pressed again, insert the Dark slide, half-press the shutter release button while pressing the roll film holder's manual film advance button to wind up the film, then contact your nearest Mamiya agent or service center."
If you need a manual, you can download one from
Posted on Aug 04, 2011
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