Archived posting to the Leica Users Group, 2004/12/07

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Subject: [Leica] M4-2
From: feli2 at earthlink.net (Feli)
Date: Tue Dec 7 11:47:25 2004
References: <000001c4dc59$351c1750$e011fea9@corp.nortel.com><023b01c4dc88$238fb4e0$2501a8c0@chartertn.net> <0C2454DD-487D-11D9-AEC9-003065D5F760@earthlink.net> <025d01c4dc93$735a0880$2501a8c0@chartertn.net>
 
> Hmm...  perhaps I am wrong but I thought all black chrome finishes were
> applied to zinc alloy.  Silver chrome and black enamel (black paint) 
> are
> placed on brass.  Am I misinformed?
>
> JB

There were/are black chrome versions of the M4, M5, M4-2, M4-P, M6, 
M6TTL, M7.
I think the M5 introduced black chrome to the M lineup.

Starting about mid run with the M4-P, Leica switched to zinc top/bottom 
plates and we
didn't see brass again until the M7 and MP (special editions excluded).

The zinc bodies came in both silver or black chrome. There is a layer 
of nickel
over the zinc, which protects it from corrosion and acts as a primer 
for the chrome.
  As far as I know you can't really do black paint on nickel.


feli


_______________________________________________________
feli2@earthlink.net                     2 + 2 = 4                      
www.elanphotos.com
In reply to: Message from vick.ko at sympatico.ca (Vick Ko) ([Leica] M4-2)
Message from jblack at ambio.net (John Black) ([Leica] M4-2)
Message from feli2 at earthlink.net (Feli) ([Leica] M4-2)
Message from jblack at ambio.net (John Black) ([Leica] M4-2)