To detect this special problem, it does not need any equipment for OM4/4Ti:
1. put a piece of film on the back of camera.
2. use a normal lens, focus on a blank wall, adjust the aperture to make the
meter read 1/30s.
3. enable memory.
4. trigger the shutter, read the meter reading.
5. clear the memory.
6. repeat 2, but adjust the aperture to make the meter read 1/15s, 1/8s,
1/4s, 1/2s.
7 repeat 3 to 5, compare the meter reading before and after shutter trigger.
See how many of you have the same problem.
C.H.Ling
----- Original Message -----
From: "Arni R Kjartansson" <arnik@xxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, February 06, 2001 9:01 PM
Subject: 2sp&4t exposure error, was Re: [OM] OT - N*k*n FM3A
> How does one measure the shutter speed?
>
> C.H.Ling wrote:
> > I think it may not happen to all OM2sp and OM4/4Ti, I still have a worn
> OM4
> > which bought from a professional photographer two years ago, it is still
> > working fine and very accurate. Many people on this list have no
problem
> > too, but a few did mentioned they had the same problem.
> >
> > The problem does not show on spot and manual mode, so you can still use
> the
> > camera to do most of the job.
> >
> > C.H.Ling
> >
>
> <snip snip>
>
> > > >My latest OM2sp start to show the problem of my 2sp sold 10 years
ago,
> > > >the speed below 1/15s start to increase exponentially. i.e. 1/8s
> > > >actual 1/4s, 1/4s actual 0.7s, 1/2 actual 1.xs, a few second actual
> > > >shutter never close. I seen this problem with another OM4, my current
> > > >OM4Ti Black... Now I only got a good OM4 and a OM2n to work for night
> > > >shoots (in auto mode). The biggest problem is the local OM service
> > > >center don't know how to repair them, they even said my 4Ti has no
> > > >problem on their tester.
>
>
>
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