I'm afraid you are wrong Thor, you are confusing coating with multicoating, you are right regarding coating but not reagarding multicoating, Zeiss T coating was developed on 1936, Zeiss T* multicoating was developed at the ending of sixties and at the beginning of seventies.- All the best Carlos --- Thor Legvold <tlegvold@xxxxxxx> escribió: > They started multicoating before the war (around > '36) but didn't > advertise it (military secret) until 1940, IIRC. > Richard would know > exactly. Both the lenses in question are marked with > the red T, > indicating a multicoating. > > It will be fun trying them out, regardless. > > Thor > > > On 26 Apr, 2006, at 23:17, Jeffery Smith wrote: > > > No aspherical surfaces. I'm not sure when they > started multicoating, > > but I don't think that early. Zeiss used the > designation of *T for > > their multicoating. When they began doing it, I > don't know. I think > > that modern CNC machining and computer designing > gives lenses from the > > last 20 years a decided advantage over the 50's > designs. But they sure > > were good given the tools of that era. > > > > > > At 03:57 PM 4/26/2006, you wrote: > >> Let me be more specific - the cameras I bought > both have 'black-nose' > >> Zeiss-Opton 50mm f1.5 Sonnars, both from the 50's > -60's, i.e. > >> multicoated (T*). > >> > >> So for all practical purposes, this IS a modern > lens, no? > >> > >> Thor > > --- > Rollei List > > - Post to rollei_list@xxxxxxxxxxxxx > > - Subscribe at rollei_list-request@xxxxxxxxxxxxx > with 'subscribe' > in the subject field OR by logging into > www.freelists.org > > - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx > with > 'unsubscribe' in the subject field OR by logging > into www.freelists.org > > - Online, searchable archives are available at > //www.freelists.org/archives/rollei_list > > __________________________________________________ Correo Yahoo! Espacio para todos tus mensajes, antivirus y antispam ¡gratis! ¡Abrí tu cuenta ya! - http://correo.yahoo.com.ar --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list