2013/8/27 <Dirk-Roger.Schmitt@xxxxxx>: ... >... If I remember correctly, the 70 mm magazine was based on a Mamiya >magazine.,, Yes, the Rollei back is like a modified Mamiya RB67 70mm back. Rollei replaced the Mamiya lever wind with an electric motor, the pressure plate was also replaced, and Rollei replaced the body-mounting part of course. Some electric connectors were added for the Rollei version. Mamiya and Rollei backs use double perforated 70mm film. 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