Archived posting to the Leica Users Group, 1999/01/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]OK, Marc but I have seen a picture of lens calculations by Zeiss (Tessar, if I remember correctly) and it was about 3 feet high stack of A4´s. I think that after the WW II most of those ended in Russia. So it is not so easy to get exact copy by simply taking the thing apart. With due respect! Raimo photos at http://personal.inet.fi/private/raimo.korhonen nyt myös Kameralehden juttuja suomeksi - ---------- > From: Marc James Small <msmall@roanoke.infi.net> > To: leica-users@mejac.palo-alto.ca.us > Subject: Re: [Leica] Nikkor S RF 135/3.5 > Date: 09. tammikuuta 1999 0:55 > > At 08:45 PM 1999-01-08 +0100, Raimo Korhonen wrote: > >How exact the copy? Did they have access to the original calculations? > > Yes. They could well have used the original patents to obtain the exact > specifications. Or, for that matter, they may have just disassembled a > lens and worked it out for themselves: the Germans had sent the Japanese a > bunch of optical glass during the War by submarine, and I suspect they had > the right mixes on hand. > > Marc > > msmall@roanoke.infi.net FAX: +540/343-7315 > Cha robh bas fir gun ghras fir!