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[OM] Re: CLA

Subject: [OM] Re: CLA
From: "John Hermanson" <omtech@xxxxxxxxx>
Date: Tue, 27 Apr 2004 09:16:47 -0400
If the special screen were in the 2N, that would affect the needle reading
in the finder (would make needle go too high) but would not affect auto
exposure.


----------------------------------------------------
John Hermanson  www.zuiko.com
mail:  omtech@xxxxxxxxx
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743-4714
          631-424-2121
------------------------------------------------
----- Original Message ----- 
From: "J Caldwell" <jamesfc@xxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxx>
Sent: Monday, April 26, 2004 10:33 PM
Subject: [OM] Re: CLA


>
> Hi Moose,
>  I understood that some OM screens do have an effect on OM metering and I
> thought I remembered that a couple Olympus screens even come with a
warning.
> I can't remember which ones, but I don't really believe that is the
problem
> - these screens aren't that different.  The OM4 is a split image focus and
> the other is a solid matte.
>
>  Anyway, the two cameras are an Olympus OM2n and an OM4Ti.  I metered on a
> grey card, purposely set out of focus and I used the same lens on both
> cameras - the OM4Ti consistently reads 1 EV lower than the OM2n.  As I
> indicated, I did run a roll of Provia through the OM4 a couple weeks ago
and
> the results seemed OK and I just submitted a roll taken on the OM2n.  I'll
> have that roll back on Wednesday.
>
> Jim Caldwell
>
> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
> Of Moose
> Sent: Monday, April 26, 2004 9:03 PM
> To: olympus@xxxxxxxxxx
> Subject: [OM] Re: CLA
>
>
> The screen has no effect whatsoever on meter readings on the OM-2, 3 and
> 4 series bodies.
>
>  From a simple logic point of view, either camera could be off or they
> could both be off in opposite directions. The only definitive answer can
> come from bracketed test slides or a meter tester used by repair people.
>
> Also, the 4Ti reads in 1/3 stop increments and you haven't said what the
> exact reading was or what the other camera is and what its finer than 1
> stop increment reading may have been. Just picking the closest marked
> speed without regard for the 2 LCD segments between each of the marked
> readings doesn't tell very much.
>
> Moose
>
> jamesfc@xxxxxxxxxxxxxxx wrote:
>
> >Thanks for the input - I'm going to do a few tests before I rely on one
> >camera vs the other - I seemed to remember the two meters were 'spot on'
at
> >one time and matched each other exactly (with the same lens).  However, I
> am
> >using a different screen in the OM4ti and that could possibly account for
> >the difference as well.
> >
> >Jim Caldwell
> >
> >
>
>



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