2012/10/3 Don Williams <dwilli10@xxxxxxx>: > > May we assume the mention of "Rolleimarin" relates only to the stereo > cameras and not the Haas design? Don: Dr. Hans Hass realized that a TLR with uninterrupted ground glass viewing would be very useful for underwater photography and convinced Reinhold Heidecke in 1951 about to build an underwater housing for the Rolleiflex, a technical team was formed for the purpose and Hass worked with this team to design the first Rolleimarin in 1953, Heidecke liked the results very much and gave instructions to Richard Weiss to build an underwater stereo camera (Heidecke was stereo cameras fan in spite of the market lack of interest for these cameras in the '50s), the old models were not suitable as underwater cameras and then the TLR Stereo camera was built. Three prototypes were made and the three units had its Rolleimarin, the stereo camera Rolleimarin was based in the Rolleimarin 1 design, however adapted for the stereo camera different controls and size, the design was ready in 1954, and then the regular Rolleimarin and the stereo camera Rolleimarin were developed almost simultaneously and they look similar externally. 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