Archived posting to the Leica Users Group, 1996/04/26

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To: <leica-users@mejac.palo-alto.ca.us>
Subject: 50 Summicron DR
From: Charles E. Dunlap <cdunlap@rupture.ucsc.edu>
Date: Fri, 26 Apr 96 14:58:18 -0700
 
I'm considering one of these and have a couple (or three) questions.

1) What is the close focus distance for these lenses?

2) What does the conversion from normal focussing to close focussing 
inolve? Do I have to remove the lens and put in a spacing ring (ie. a 
small extension tube) or is the adjustment accomplished internally?

3) Can I achieve the same thing with a normal 50 Summicron-M using an 
extension tube, or are the optics of the DR corrected better for work 
close up?

-Charlie

Charles E. Dunlap
Earth Sciences Dept.
University of California
Santa Cruz, CA 95064
Replies: Reply from Michael Volow <mvolo@acpub.duke.edu> (Re: 50 Summicron DR)