Nikon F4 doesn't load film

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mr - 21 Nov 2006 15:40 GMT

I have a Nikon F4 which doesn't load film: when I put in a roll, close
the back cover and press the shutter release button, the shutter fires,
but the spool does not rotate and the alert LED starts blinking. I have
changed batteries and cleaned (with due care) all visible contacts,
tried in DX and manual sensitivity mode.

I've looked at the service manuals and it could be almost anything,
ranging from a faulty switch to a defective FPC

I'm going to take it to a trusted repair shop anyway but I was
wondering what the most likely cause could be, from your experience.

Thanks

Marco

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Nicholas O. Lindan - 21 Nov 2006 19:17 GMT

>I have a Nikon F4 which doesn't load film: when I put in a roll, close
> the back cover and press the shutter release button, the shutter fires,
> but the spool does not rotate and the alert LED starts blinking.

It sounds like the film isn't engaging the rubber take-up
roller because one of the pressure springs/rollers on the
back is bent/jammed.

If this is the only roll of film you have tried I would suspect a
jammed cassette.

You are taking the film leader tongue all the way to the orange
mark and no further?

Signature

Nicholas O. Lindan, Cleveland, Ohio
Darkroom Automation: F-Stop Timers, Enlarging Meters
http://www.nolindan.com/da/index.htm
n o lindan at ix dot netcom dot com

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mr - 21 Nov 2006 23:10 GMT

Nicholas O. Lindan ha scritto:

> >I have a Nikon F4 which doesn't load film: when I put in a roll, close
> > the back cover and press the shutter release button, the shutter fires,
[quoted text clipped - 3 lines]
> roller because one of the pressure springs/rollers on the
> back is bent/jammed.

Actually they look fine and the camera is clean and without apparent
signs of damage

> If this is the only roll of film you have tried I would suspect a
> jammed cassette.

I tried several rolls, some I usually rewind and use for similar tests
and also brand-new ones

> You are taking the film leader tongue all the way to the orange
> mark and no further?

Yes, I know this camera is a bit picky wrt to film alignment so I tried
different positions, unfortunately to no avail.

Thanks

Marco

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