Archived posting to the Leica Users Group, 1999/05/21

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Subject: Re: [Leica] Crow filet
From: "B. D. Colen" <bdcolen@earthlink.net>
Date: Fri, 21 May 1999 13:15:44 -0400

Well, Harrison, you'd think that would be the case. But I'm using this on an
F, and when I hold a +1 diopter in front of the eye piece and focus,
everything it terrific. But when I attach what is supposed to be a Nikon +1
diopter, I can't focus.....I think they just screwed up....I do know what
you're talking about though..,.the Leica M is shipped with a -.5...so to get
a +.5, I put a +1 on it......



Harrison McClary wrote:

> >A couple of weeks ago I finally got a hold of a +1 diopter for the Nikon
> >F....But for some reason it seemed much too strong. I figured that that
> >meant I really needed a +.5.....Well...To make a long story, which
> >involves some custom work on the part of my neighborhood optomatrist,
> >turns out that that Nikon +1 diopter is really a +2! Despite the fact
> >that it is marked +1.....
>
> BD several years ago when I first got glasses I was talking to a friend
> who worked at Nikon NPS Atlanta about ordering a dipoter for my F3 and
> 8008.  She told me that all the nikon finders were shipped -1....so I
> should not need any kind of correction since my perscription was
> -.5...maybe this is why a +1 diopter is really a +2.
>
> Harrison McClary
> email: harrison@mcclary.net
> http://www.mcclary.net
> preview my book: http://www.volmania.com