Here I had referred to the "Auto exposure speed", it is hard to
measure without a professional equipment, you can do it with slide but
not easy to judge. On the other hand for the 4 and 4Ti, there is a way
to check the autoexposure without any external equipment, but you have
to assume the displayed shutter speed is accurately associated with
true shutter speed:
1. put a piece of film (or the checking sheet come with the OM4Ti) to
the camera for providing proper reflection.
1. set the camera to auto mode, focus at a plain wall.
2. note the shutter speed display inside the finder.
3. turn on memory mode.
4. fire the shutter.
5. check the display speed again.
The good one will have conceded reading, like my trusty OM4, I still
have a 4Ti with different readings below 1/60s and a 2sp behave the
same (I can HEAR it below 1/8s). Also, the speed is not linear, error
increase when speed going down. But they works fine in manual and spot
mode.
For manual shutter speed it is easier to check, you can see:
http://www.glink.net.hk/~olympus/shutt.htm
C.H.Ling
Clemente Colayco wrote:
>
> Hi CH:
>
> Sorry to bring up an old topic. How are you able to tell that the shutter
> speed on your cameras as you ay below are not accurate? Is there I can do it
> without expensive equipment?
>
> Thanks and regards
>
> Titoy
>
> ----- Original Message -----
> From: C.H.Ling <chling@xxxxxxxxxxxx>
> To: <olympus@xxxxxxxxxxxxxxx>
> Sent: Tuesday, February 06, 2001 11:29 AM
> Subject: Re: [OM] OT - N*k*n FM3A
>
> > Yes, I'm jealous, I need a new up to date mechanical camera from
> > Olympus to support my OM lenses. I'm very unhappy with the bug of the
> > OM2s and OM4, 4Ti, here I mean the slow speed auto exposure problem.
> > 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.
> > C.H.Ling
> >
< 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 >
|