I've seen this term "Zeiss Opton," describing a # of lenses, such as on my newly purchased Automat, and describing a # of lenses for Contax. What does it mean. Why have I never sen it on a lens? I see Zeiss, Zeiss Jena, occasionally "aus Jena" (w/o "Zeiss") but I hear of these "Optons" and have never seen a lens so labelled. Who can clarify? PJ Nebergall --- 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