Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84; site watdaisy.UUCP
Path: utzoo!watmath!watdaisy!drraymond
From: drraymond@watdaisy.UUCP (Darrell Raymond)
Newsgroups: net.rec.photo
Subject: Re: f/1 lenses
Message-ID: <7206@watdaisy.UUCP>
Date: Mon, 22-Apr-85 08:23:42 EST
Article-I.D.: watdaisy.7206
Posted: Mon Apr 22 08:23:42 1985
Date-Received: Tue, 23-Apr-85 05:59:50 EST
Distribution: na
Organization: U of Waterloo, Ontario
Lines: 13


  There are a couple of good reasons for restricting f/1 lenses to 
rangefinders.  The first is focusing accuracy.  Depth of field at f/1 is 
practically nil; you really need the accuracy of the rangefinder, 
especially since you're bound to be shooting in low light conditions.  
The second is sheer size.  A Noctilux is about twice the size of a
standard Summicron; try to imagine the reflex Summicron twice as big
as it is now.  

  Mind you, the real reason in the case of Leitz is just that they like to
be ornery - look how long it took to construct a decent M series camera 
with meter. Anybody out there own an M6?  I'd be interested in hearing
any anecdotes about it.