Could be meter position, cds cells.
___________________________________
John Hermanson
Camtech Photo Services, Inc.
21 South Lane, Huntington NY 11743
631-424-2121 | Olympus OM Service since 1977
http://www.zuiko.com | omtech1 AT verizon.net
Philippe Le Zuikomane wrote:
> Hi John,
>
> No, I was testing with artificial light at night with the apertures
> set between f1.8 and f5.6. I went through most speed settings. I had
> to set the film speed to 800 ASA just to get the needle into the
> bracket. I just re-checked aiming at a bright shade area through the
> Venetian blinds this morning and the meter is still behaving pretty
> much as if the film speed had been set to 25 ASA or actually less
> than I can dial in. It's quite consistent in that way so far. The
> needle even moves around consistent with the center-weighted
> averaging when I track a small, bright subject against a darker
> background. The meter responds fine to DOF checking too, as it
> should.
>
> With a 50/1.8 wide open at f1.8 and framing that gently lit outdoor
> scene, I get 'correct' exposure at 1/30 s -- with the film speed set
> at 800 ASA (!). Of course, looking through a 40/2 at f2, Bill's OM-10
> sets itself for 1/1000s at the 800 ASA setting and one of my good
> OM-1s tracks that whatever lens I attach. I've also framed the scene
> while rotating the film speed setting dial and the needle moves quite
> consistently with it 1/3 stop at a time (I replicated this on another
> OM-1n and it behaves exactly the same). The needle does plummet and
> rise again in the 'dead' zone between 25 and 1600 ASA, as it does in
> the good OM-1.
>
> (That OM-1n has a 1-10 screen in but I understand it would not affect
> metering.)
>
> - Phil
>
>
> On 08:18, John Hermanson wrote:
>
>
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