Dear John, that is a great information! Thanks for this document. By the way, I own this lens with Rollei QBM mount! If shifted, exposure metering does not work with the SL35E, but with SL2000 it was ok. I do not know any reason. Dirk Dirk-Roger Schmitt -----Ursprüngliche Nachricht----- Von: rollei_list-bounce@xxxxxxxxxxxxx [mailto:rollei_list-bounce@xxxxxxxxxxxxx] Im Auftrag von John Wild Gesendet: Dienstag, 9. September 2014 13:42 An: rollei_list@xxxxxxxxxxxxx Betreff: [rollei_list] Re: Flange focal distance The PC Super Angulon with adaptable lens mount spec sheet gives the flange focus distance for a number of cameras... http://www.summilux.net/documents/PCSuperAngulonR28-300ppp.pdf ...Rollei QBM Lens Mount 46.5 and Flange Focus 44.5 John On 09/09/2014 00:04, "CarlosMFreaza" <cmfreaza@xxxxxxxxx> wrote: > 2014-09-08 8:03 GMT-03:00 <Dirk-Roger.Schmitt@xxxxxx>: >> Hello, >> >> after a while I am going to start a question here. >> Can you help me out with some questions about the flange focal >> distance of Rollei QBM? >> >> First, on a couple of websites the number of 44,70 mm is published. >> Also on Wikipedia this value was published. >> >> http://de.wikipedia.org/wiki/Auflagemaß >> >> In the meantime, this value was corrected to 44,50 mm, and it is >> mentioned that the 44,70 mm was published erroneously. >> >> So, is there anybody who can confirm the 44,50 mm? > > > Hello Dirk: > I did not find the info in Prochnow's books after a > quick research, however the QBM flange is 44,50mm according Carl Zeiss > confirmed to the Wikipedia article author. Carl Zeiss manufactured > several QBM lenses from the beginning, of course. > > Carlos > --- > 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 > > --- 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 --- 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