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Re: Mamiya M645j film counter not advancing to start when...
It's a common problem in the 645 - if you want to do it yourself, without a permanent fix, put a DROP ( not a lot ) of lighter fluid, or rubbing alcohol on the tip of a fine screwdriver and apply it to the gear you use to rewind the camera, and turn back and forth a few times. If that doesn't loosen it, it'll have to be disassembled.
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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 http://butkus.org/chinon/mamiya/mamiya_645af/mamiya_645af.htm
A few things to consider:
-Loading: Make sure you are not over loading the film before you start to shoot. I have sometimes turned the film advance too many times and end up cutting down on the amount of usable film.
-Are you loading the film in a dark area and careful to close up the back just after it has started to load to avoid exposing it?
-Shooting: Are you metering properly when shooting? Obviously underexposed images won't develop. You should consider a hand held meter.
-Shooting: Are you advancing the film more than it needs to be after you take your shot? Watch the film counter and feel for that click as it hits the next frame. I have advanced past the next shot many times by accident.
Hope that helps,
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.
This is not the best solution as it indicates a faulty film back. The film should advance without resorting to activating the film-wind release lever. That is only for intentionally advancing a partially exposed roll of film. Make sure the multi-exposure lever is not engaged and that the counter does advance and the red mark disappears as you advance to an unexposed frame.
Hello. 35mm cameras back in the day used to suffer from this irritating problem. There is a small button that is pressed by the door edge when you close the back. Due to age(flexing and slop) that occurs with normal wear, the metal edge becomes ever-so-slightly bent, resulting in a less-than-needed pressure on this button. The button, when held properly by the back, captures a little internal gear mounted on the film counter dial--preventing its spring-loaded return. When you remove the back to re-load film, the counter immediately jumps back to "start". As the film advances, the roll increases in size and pressure against the door, causing the symptom. Go to a camera store with knowledgeable sales people and you might find one who knows how to re-work the back just-so to fix it. To be absolutely sure, however, you'll need to buy another back. On some medium-format cams, there is a little raised "bump" on the edge of the door that precisely matches up to the position of the button. If this is the case, and you are careful, it can be gently but firmly squeezed to make it stick out more, increasing the pressure on the counter button.---Rick
Unlike other cameras that start at frame #1 after loading and count up as the film is used, the N55 advance the film to the last frame during the loading process. When loading is complete, the frame counter stops at the number of available frames on the roll (usually 24 or 36) and counts down as photos are taken. I know it sounds backwards but it actually makes a lot of sense to engineer it this way.
After the last photo is taken (displays 1 on the counter), the camera automatically winds the end of the film into the cassette and the counter shows a blinking E.
I am assuming that that is what is being displayed and not a blinking F. it it is an F, perhaps there is a problem with the LCD display? If so, it probably isn't worth having it repaired.
Perhaps you've already solved the mystery.
There are 2 parts to the back of that camera, the film back + the part that it slips onto. And they have little safety latches/pins that couple in order to advance the film & release the shutter.
I'm sure those just aren't in the right place. Here in Los Angeles you could take it to any major camera store or repair shop & they've help you out.