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Re: [OM] Strange diopter effect

Subject: Re: [OM] Strange diopter effect
From: John Robison <omrobison@xxxxxxxxx>
Date: Wed, 17 Apr 2002 19:26:38 -0700 (PDT)
--- Paul Wallich <pw@xxxxxxxxx> wrote:
> I went out today to take pictures of the local frog
> pond > Instead, it's the fault of where I set the
diopter
> adjustment to give my
> aging eyes the best view of the exposure meter.By
> turning the knob back a
> ways, I was able to bring the top and bottom of the
> split-screen into sharp
> focus at the same time. Of course that position made
> the matte part of the
> screen a little unsharp even when the spitscreen
> indicated good focus, so I
> settled on a compromise position about 1:30... My
> head is still spinning with
> trying to visualize the ray paths that could make
> this kind of thing happen.
> 
> Anyone else experience something like this?
> 
> paul
> 
> --
> Paul Wallich                                          pw@xxxxxxxxx
  If you have or have access to a plain matte screen,
a 1-4 or 1-8 or 1-10 should do, pop it in and see if
that helps. I've never seen a split wedge that agreed
exactly with the matte surround. Nope, don't like them
split wedges, don't like them a bit.  John Robison

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