Likely problems:
Weak/marginal batteries
Loose/poor ground connections (bottom cover, battery cover, ground
screws loose)
Damage to the ASA/ISO/compensation dial and contacts (turned too far?)
We'll be pleased to check it over if you want....
Steve Goss wrote:
> My OM-4T suddenly started acting up tonight.
> The set up was:
> OM-4T, extension tube, 50mm f1.4 on a tripod, T32 and bounce grip
> 2 connected by a 2meter T cable, handheld. Lens at f8, shutter at
> 60, auto. Self timer turned on.
> Because I wanted some more light on the subject, I set the
> exposure compensation dial to +1.
> When I pressed the shutter, the aperture prefired, the mirror
> went up, and the camera started beeping. It went through the low
> pitched beeps, the high pitched beeps, and then started on the
> low pitched beeps again. The only way to clear it was to set the
> switch to self test.
> I was almost done with the roll, so I finished using the manual
> 60, and put in a roll of Seattle Filmworks film I use for testing.
> The camera would work properly with no speed compensation, with
> +1/3, and with +2/3, but not with +1.
> Figuring I would just use +2/3 instead of +1, I reloaded a real
> roll of film, and found that +2/3 didn't work any more.
> Back with the test film, and none of the settings on the
> compensation dial including zero, work.
>
> I tried two other sets of batteries, one new. No difference. For
> the later tests I turned off the self timer, but that didn't help.
>
> What is going on here?
>
> Thanks, Steve Goss, Dallas Tx usa
>
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