Archived posting to the Leica Users Group, 1999/11/25

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Subject: Re: [Leica] Help with IIIa
From: "Marshall C. Hunt Jr" <huntmc2@fuse.net>
Date: Thu, 25 Nov 1999 21:49:08 -0500

This is a focusing device for  the rangefinder telescope system.  Rotate the
tab clockwise to focus the rangefinder eyepiece at near distances so that the
RF can be focused more easily.  The infinity mark is to indicate that for far
distances the tab is turned counter-clockwise.

Marc James Small wrote:

> At 12:02 PM 11/25/1999 -0500, Lee, Jonathan wrote:
> >
> >The only thing that puzzles me about the IIIa is the ribbed lever on the
> >rangefinder eyepiece, the one marked with 8 or is it the infinity sign?
> >What is the purpose of that?
>
> It is an infinity sign.  This is a diopter adjustment for the VF.
>
> Marc
>
> msmall@roanoke.infi.net  FAX:  +540/343-7315
> Cha robh bas fir gun ghras fir!