You are joking Eric, anyway, if you have doubts, you can see here a cut about the Pentacon six with the Xen... Biometar 2.8/80 five elements at the middle of the page: http://www.praktica-users.com/cams/six/pentaconsixmanual.html Carlos > Hi Peter - > > From what I understand, Carlos is saying the Biometar on > the Praktica > and the 2.8 B is the same formula/type, similar to the > Xenotar. I am > questioning how that is possible, given that the Praktica > is an SLR > and would need a design with enough back focus to clear the > mirror, > which to my knowledge the Xenotar (and 5 element Planar) do > not have. > If they did, you'd see them elsewhere on other SLRs, > like the > Hasselblad... > > So we have an open question without a definitive answer... /rollei_list ____________________________________________________________________________________ ¡Buscá desde tu celular! Yahoo! oneSEARCH ahora está en Claro http://ar.mobile.yahoo.com/onesearch --- 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