Archived posting to the Leica Users Group, 2000/12/18

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Subject: [Leica] Re: Leica Users digest V18 #268
From: Frank Dernie <Frank.Dernie@btinternet.com>
Date: Mon, 18 Dec 2000 10:48:21 +0000

> From: "Terry Sham" <tsham@netvigator.com>
> Subject: [Leica] Silver Chrome Vs. Silver Chrome Plated Finish
> Message-ID: <004d01c06800$e6582940$f88ac6cb@tsham>
> References: 
> 
> According to the Leica catalogue. Some of the M lenses are stated in silver
> chrome finish such as Summilux 35mm f/1.4 ASPH. and some are in silver
> chrome plated finish such as Summicron 35mm f.2 ASPH. Is there any
> different? Furthermore, is there any different between anodized and plated
> fisishes?
> 
> Thanks
> 
> Terry Sham


Terry
all "chrome" M lenses are chrome plated on brass. All the black lenses are
anodised aluminium. It is not possible to produce a good quality chrome
plate on aluminium.
The secondary effects of this are that the silver lenses are substantially
heavier but also a more robust finish.
cheers Frank