Archived posting to the Leica Users Group, 2003/01/08

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Subject: [Leica] Re: The old Konica / Leica back focus question
From: Cummer <cummer@netvigator.com>
Date: Thu, 9 Jan 2003 07:18:04 +0800
References: <200301082206.OAA14286@mejac.palo-alto.ca.us>

>Date: Wed, 08 Jan 2003 13:29:09 -0800
>From: Jerry Lehrer <jerryleh@pacbell.net>
>Subject: Re: [Leica] HELP
>Message-ID: <3E1C9825.9A487267@pacbell.net>
>References: <1639B5A6-234D-11D7-8E48-000393802534@mac.com>
>
>Martin
>
>This lack of compatibility is of some concern to me now.  I am
>interested in some of the Hexar M lenses, but have heard some
>small talk of differences in flange-to-film distance.  I would  like
>to get the full truth of the matter.  I have heard opinions, not
>measured facts.
>
>Can any of you help me find the facts?
>
>Jerry


Jerry,
Please check out Dante Stella's exposition at:
http://www.dantestella.com/technical/hexarrf.html
for some background on the "problem".
I have a Hexar RF which I use with all manner of Leica glass without 
any focusing problems (beyond old eyes and user error) and when this 
question first arose in May 2001 I did a survey of LUG users (14 
people replied) of Hexars with Leica lenses and of all replies - 13 
of 14 were satisfied with the focusing of Leica lenses on Hexar 
bodies. You might want to check the archives for the exchanges around 
that time. Also Steve Gandy's site, in the Hexar review has some 
comments. See http://www.cameraquest.com/konicam.htm. Finally, you 
might check out Erwin Puts' site. Erwin maintains the two marques are 
incompatible, but his measurement criteria are very narrow and in 
real world use most users are very satisfied, it seems. See 
http://www.imx.nl/photosite/japan/hexarrf.html
Hope this helps.
Howard Cummer
Hong Kong
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Replies: Reply from Jerry Lehrer <jerryleh@pacbell.net> (Re: [Leica] Re: The old Konica / Leica back focus question)