Archived posting to the Leica Users Group, 1997/01/01

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Subject: Re: F1.4/32 ASPH - M made by SIGMA?
From: "Richard W. Hemingway" <n5xrd@telepath.com>
Date: Wed, 01 Jan 1997 11:45:14 -0600

At 23:50 1997-01-01 +0800, you wrote:
>Recently,
>
>Is there any truth that SIGMA is manufacturing the lens elements for 
>this lens? Supposedly only the first batch of 2000 were made by Leica
>and thereafter by Sigma. A collector's shop I visited to offers both
>versions but the price difference is 3x!!! Is there any truth to 
>this?
>

I have no idea who makes them, but I have had two 35/1.4 APSH lens the first
was #3659488, which showed coma wide open and I sold it.  The one I have now
is #3670766 and it is a gem with no coma (used the dreaded "Christmas tree
test" for both lens). These lenses are later lenses with the one aspherical
surface produced by press forming rather than the early one with two
aspherical surfaces formed by grinding and polishing.

If the second of my lenses was made by Sigma, fine for them as it is
superior to the first one.  My impression is they were both made by Leica???
Interesting.

Dick Hemingway
Norman, OK