Archived posting to the Leica Users Group, 2002/04/22

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Subject: Re: [Leica] Re: Elpro and 180/4
From: Doug Herr <telyt@earthlink.net>
Date: Mon, 22 Apr 2002 20:36:38 -0700

on 4/22/02 4:07 PM, Aram Langhans at langhans@yakima-wa.com wrote:

> Thanks David.  Did you get the Elpro 4 and 3 mixed up?  Doesn't the 4 focus
> closer than the 3 or is my thinking all wrong?
> 
> Aram
> 
> 
>> 
>> Sorry to be slow in coming forward with the Leica information which I've
>> oddly enough just compiled for my college work.
>> 
>> ELPROs with 180mm f4 Elmar-R
>> 
>> Elpro     Focus     distance     Repro Ratio     object field (mm)
>> 4        inf        135cm         1:7.4          178x267
>> 4        1.8m        75           1:3.3           80x120
>> 3        inf         61           1:3.3           80x120
>> 3        1.8m        45           1:2             48x72
>> 
>> Data from Theo Kisselbach's Leica R-4 Reflex manual.
>> 
>> Hope this helps
>> 
>> David Prakel
>> 
>

According to my sources David got it right.
 
Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com


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