Archived posting to the Leica Users Group, 2000/10/19

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Subject: Re: [Leica] Thin extension rings?
From: John Collier <jbcollier@home.com>
Date: Thu, 19 Oct 2000 15:41:12 -0600

The proper close focus adapter ring for the 280/4.8 is the 16469 (M mount,
male and female) which is 10mm thick. The focus ranges are:

no ring - infinity to 3.5m
one ring - 3.5m to 2.76m
two rings - 2.76m to 2.33m
three rings 2.33m to 2.06m

The info is from the 1978 general catalogue.

John Collier



> From: Martin Howard <howard.390@osu.edu>
> 
> 
> I've just checked KEH which have something under the Visoflex page they call
> a "7mm extension ring".  Anyone know more about what this is?  (Such as
> catalogue number or Leica SCOOBY codes name?)
>