Archived posting to the Leica Users Group, 2001/04/11

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Subject: [Leica] A Repost From 1997 -- DR Summicron
From: Marc James Small <msmall@roanoke.infi.net>
Date: Wed, 11 Apr 2001 13:03:07 -0400

From 19 AUG 97:

Roy Moss, "The Eyes Have It!"  VIEWFINDER 28:1 (First Quarter, 1995), p.
38.
  
  Roy says there are two runs of the DR lens but does not give a splitting
  point either by date or serial number.
  
11318/SOOIC-MN	Early.  single focusing scale (either feet or meters) with
reproduction ratios.  Marked '5cm', the last Leica production lens, to my
knowledge, to bear a centimeter marking for the focal length.

11318/SOMNI	Later.  dual focusing scale (both feet and meters) but no
reproduction ratios.  Marked '50mm'.  

14002/SDP		the eyes for the above lenses
  
Roy goes on to say, "[O]n most M6 cameras, when used in the normal focusing
range at or near infinity, the rear of the len's (sic) focusing helicoid
_may_ be obstructed by the casing of the photo cell requiring that the M6's
photo cell casing be modified."
  
MJS NOTE:  It is my understanding that the eyes for each version of the DR
lens are not interchangeable.  I believe the early eyes all had the polygon
surrounding the Leitz name, while later eyes are simply engraved with the
Leitz name without a surround.
  
I do not know the year or serial number of the break.  Mine is an early
one:  1586763 dating from 1958.
  
Marc
  
  
Marc James Small
Cha Robh Bas Fir, Gun Ghras Fir!
FAX:  +540/343-7315
  
  


msmall@roanoke.infi.net  FAX:  +540/343-7315
Cha robh bas fir gun ghras fir!

Replies: Reply from Dan Cardish <dcardish@sympatico.ca> (Re: [Leica] A Repost From 1997 -- DR Summicron)
Reply from Marc James Small <msmall@roanoke.infi.net> (Re: [Leica] A Repost From 1997 -- DR Summicron)
Reply from Marc James Small <msmall@roanoke.infi.net> (Re: [Leica] A Repost From 1997 -- DR Summicron)
Reply from Rob McElroy <idag@pce.net> (Re: [Leica] A Repost From 1997 -- DR Summicron)