The spot reading should fall within the circle of the 2-4 screen, Is that
circle the same size as a 1-1 microprism? The secondary mirror may be out
of adjustment, that determines where the spot is read. Dashes seen over the
shutter speed may blink, but it is accepted, I think, if it is only the one
dash over the shutter speed that is blinking. Could be a dry asa ceramic,
I'm not sure.
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington, NY, 11743-4714,
631-424-2121, www.zuiko.com
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----- Original Message -----
From: "b k" <brtlmj@xxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Wednesday, December 22, 2004 3:38 PM
Subject: [OM] Problems (?) with an overhauled OM-4
> Hi everybody,
>
> I am new to the list. So far I've had a mild form of zuikoholism, but it's
> getting worse so I think I will fit in ;-)
>
> And here is my problem...
> I bought an OM-4 on *bay. It was supposed to be in a "perfect working
> order". Well... it wasn't (I wasn't even surprised). So I decided to get
> it overhauled. Now I have my camera back and I _think_ that some of the
> original problems are still there. But, those may be "features not bugs",
> and I am not sure if I should send the camera back to the repair shop. So
> I have a few questions to you, more experienced Zuikoholics ;-)
>
> 1) AFAIK, the spot metering area should coincide with the microprism area.
> In my camera it appears to be higher by about half a diameter of the
> circle (checked by metering a circular light source).
>
> 2) After I make a spot measurement, the tiny diamond(s) sometimes move
> just by themselves, without me changing anything. This happens more often
> for some ASA settings.
>
> 3) This one is a bit complicated. When I make one or more spot
> measurements (in AUTO), each is represented by a tiny diamond, and the
> shutter speed is represented by a bar. If i decide to use exposure
> compensation, the bar should move, and the diamonds should stay where they
> were, right ? In my camera, for some ASA settings, turning the
> compensation dial by 1/3 EV moves the diamonds... shutter speed does not
> change. Similar thing happens in MANUAL mode.
>
> The question is: is it all normal ? Or at least "within factory
> tolerances" ? And if it is not, can it be fixed/can it be expected to be
> fixed during an overhaul ? All the faults were pointed out when I sent the
> camera to the repair shop...
>
> Thanks !
>
> Bartek.
>
>
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