Archived posting to the Leica Users Group, 1997/12/22

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Subject: Re: [Leica] New Noctilux
From: Dan Cardish <dcardish@microtec.net>
Date: Mon, 22 Dec 1997 08:01:38 -0500

At 03:19 PM 22-12-97 +0900, you wrote:
>Eric Welch wrote:
>
>>Nope. There has been no change in the 50mm f/1.0 Noctilux formula since
> it's beginning. 
>
>Eric,
>Here's a quote from the Photography in Malaysia page:
>It seems to contradict your statement. 
>http://mir.com.my/rb/photography/hardwares/speciallenses/leica_notc.htm
>
>Used to be the sole fastest commercially available 35mm lens in the
>world - but remains as the fastest
>     modern lens in the rangefinder camera system. First model appearing
>in 1976. Current version
>     Noctilux-M. New glasses enabled the Notilux to be re-computed to
>give outstanding maximum aperture
>     of f1 and also dispense with aspherical surfaces - thus making the
>manufacturing process simpler. The new
>     version is a complete new design with seven elements instead of 6
>elements and with "air lenses" for   [snip]

The "original: version mentioned here is the aspherical f1.2 Noctilux.  It
was replaced by the current F1.0 version.  There have been no optical
changes in the f1.0 version since its introduction.

Dan C.