Archived posting to the Leica Users Group, 2003/11/27
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Canon made quite a few f1.2 standard lenses. The lens diagrams I have seen show the aspherics to be very similar, I can not tell if identical, between the early 55 f1.2s and the late 50 f1.2. The non aspherical f1.2s are noticeably different though obviously of the same conceptual family. cheers Frank > from: Don Dory <dorysrus@mindspring.com> > date: Thu, 27 Nov 2003 16:39:06 > to: leica-users@mejac.palo-alto.ca.us > subject: RE: [Leica] Re: now 50mm L > > 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 > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html > > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html