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Re: 2sp&4t exposure error, was Re: [OM] OT - N*k*n FM3A

Subject: Re: 2sp&4t exposure error, was Re: [OM] OT - N*k*n FM3A
From: "Tom A. Trottier" <TomATrottier@xxxxxxxx>
Date: Wed, 7 Feb 2001 01:15:45 -0500
For exposures shorter than 1/60th, take a picture of your tv & count
the visible lines. NTSC (Canada, US, Japan) has 525 lines every
1/30th, so 1/1000=16 lines.

PAL, SECAM, look it up.

Tom

On 6 Feb 2001, at 13:26, sayeth T.Clausen@xxxxxxxxxxxx <olympus@xxxxxxxxxxxxxxx>

>
> On Tue, 6 Feb 2001, Arni R Kjartansson wrote:
>
> > How does one measure the shutter speed?
>
> I'm sure there are scientific ways of checking....but...as long as I get
> an image on the film that is as I expect it to be (exposure-wise), I
> assume the camera to be ok. I regularly check that my hand-held light
> meter and my cameras light meters are in rough agreement too.
>
> As for the precise checking, I usually ask the Olympus repair-guys in
> Denmark to do so. And, as stated otherwise, I take the cameras for a
> "health-check" every 3-5 years (CLA).
>
> If a camera needs more attention than that, then I call it Canon and
> dispose of it ;)
>
> --thomas
>
>
> >
> > 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.
> >
> >
> >
> > < This message was delivered via the Olympus Mailing List >
> > < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> > < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
> >
>
> --
> Mange hilsner / Sincerely
>
> -------------------------------------------
>   Thomas Heide Clausen
>   Civilingeniør i Datateknik (cand.polyt)
>   M.Sc in Computer Engineering
>
>   E-Mail: T.Clausen@xxxxxxxxxxxx
>   WWW:    http://www.cs.auc.dk/~voop
> -------------------------------------------
>
>
> < This message was delivered via the Olympus Mailing List >
> < For questions, mailto:owner-olympus@xxxxxxxxxxxxxxx >
> < Web Page: http://Zuiko.sls.bc.ca/swright/olympuslist.html >
>


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