Thank you Marc, I had not read your previous message, I only wished to mean Zeiss Ikon manufactured hoods for the lenses; also a clarification about my message, in that February 1936 catalog the Biogon does not appear, it appears the f8 28 mm Tessar (75º angle of view).- All the best Carlos --- Marc James Small <marcsmall@xxxxxxxxxxx> escribió: > At 05:41 PM 4/4/2008, Carlos Manuel Freaza wrote: > >According a February 1936 Zeiss Ikon catalog the > >lenses you mentioned were already manufactured for > the > >Contax camera with the same focal length and > >luminosity; except for the 35/2.8 Biogon that had > a > >recessed front element, Zeiss Ikon manufactured > lens > >hoods for the other lenses, diameter 27mm,37mm and > >42mm.- > > > Bear in mind the S and A sizes, or, in Leica > terminology, E and A sizes. S and E sizes were > screw-in, while A sizes are slip-over. > > The basic sizes are: > > Contax: > > A42 or S40.5 except for the 2/8,5cm cm Sonnar > (A51/S49). The long lenses had a different size > but I believe that the same filter size. I could > check on the 2.8/18cm CZJ Sonnar I use on my > Hasselblad 2000 FCM. > > Leica: > > A42 or E39 for the most part.: But there are some > notable exceptins such as the inclined E36.6 thread > used on the Summitar. > > Marc > > > > > msmall@xxxxxxxxxxxx > Cha robh bàs fir gun ghràs fir! > > --- > 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 > > Yahoo! Encuentros. Ahora encontrar pareja es mucho más fácil, probá el nuevo Yahoo! Encuentros http://yahoo.cupidovirtual.com/servlet/NewRegistration --- 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