Archived posting to the Leica Users Group, 2003/11/27

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Subject: RE: [Leica] Re: now 50mm L
From: "Don Dory" <dorysrus@mindspring.com>
Date: Thu, 27 Nov 2003 11:39:06 -0500

Joseph,
With the exception of the change in coating, was there really a change
in the formula?  In other words is the lens really a 52.5 that was
called a 55mm one year and a 50mm the next for marketing reasons?

Don
dorysryus@mindspring.com

- -----Original Message-----
From: owner-leica-users@mejac.palo-alto.ca.us
[mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of Joseph Yao
Sent: Wednesday, November 26, 2003 11:54 PM
To: Leica User Group
Subject: Re: [Leica] Re: Leica Digilux 2

There were a few version of the aspheric 55mm f/1.2:

March, 1971
FD 55mm f/1.2 AL

March, 1973
FD 55mm f/1.2 S.S.C. AL

March, 1975
FD 55mm f/1.2 S.S.C. Aspherical

The focal length went from 55mm to 50mm in 1980, with a new design:

October, 1980
New FD 50mm f/1.2 L

Joseph


on 27/11/03 12:24 pm, Don Dory at dorysrus@mindspring.com wrote:

> Henning,
> Canon made a 50mm F1.2 L lens contemporaneous with the first Noctilux.
> It had eight elements, a ground aspheric surface, and close range
> correction.  Erwin claims it is better than the Noctilux.  We will see
> about that.
> 
> Don
> dorysrus@mindspring.com

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