The diopter is not supposed to have a zero setting. The correct setting is
wherever it ends up, allowing the current user to see the focus screen
clearly. Why set it to zero if the screen isn't sharp?
John
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----- Original Message -----
From: John A. Lind <jlind@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, June 08, 1999 1:29 PM
Subject: Re: [OM] OM-4 diopter adjustment
> At 19:55 6/8/99 , Giles wrote:
> >
> >I don't think the manual says what setting is 0 - I could be wrong of
course.
> >
>
> I read the OM-4 manual before my first posting . . . Giles is correct, it
> does not state where the "0" position is (I looked for that specifically)
.
> . . just how to adjust it until the focus screen is sharp. The diopter
> range was found in the specs in the back of the manual.
>
> I pointed mine, without lens, at a brightly lit, pale single-colored wall
> (no, not single coated, single colored), and adjusted. Pointing at an
> overhead light didn't work very well. You should find one position of the
> knob in which the microprisms and the shutter speed display at the bottom
> seem sharper than the others. As stated before, did this a few times
> before I found the one best position. (Someone also monkeyed around with
> the diopter knob once and had to go through it again.)
>
> If you want to wear your glasses when you use the OM-4, do this with your
> glasses on. I push mine up and out of the way with the top of the prism
> housing, or with my hand, just before looking through the viewfinder.
>
> -- John
>
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