2009/12/3 Maurice M. Greeson <maurice@xxxxxxxxxxx>: > I think it probably was made by the Questar Corp. for their telescopes and > most likely it has the SL66 bayonet, but I am not sure. I could see that Questar manufactures extension tubes/adapters to couple different cameras to the telescopes, some of these extension tubes look very similar regarding your adapter, it has the extension tube and the T ring for the camera. They have a camera adapters regular list that does not include Rollei cameras, however they do manufacture adapters for any camera according the customer specs. Anyway some time ago they had included in the regular adapters list one for Hasselblad 500 cameras, are you sure your adapter is not for Hasselblad? Questar accesories list: http://www.questar-corp.com/acc7.htm#camera Some adapter looking similar to yours at the end of this page: http://www.barrie-tao.com/questar_life.html 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