【Ultra Rare】 ZEISS JENA Duonar 2x T Teleconverter Lens for RolleiFlex Bayonet RI RIII Camera #10227 This is a very rare teleconverter lens for RolleiFlex. As a bonus, the original box for the Rollei prism finder is included. It is in average condition for its age, with some scratches. This item is a one-of-a-kind limited item. Please take this opportunity to purchase it! Due to its popularity, competition is inevitable! Don't miss out if you're looking for one!! ◆ Appearance Condition It is in average condition for its age, with some scratches. There is no smell or stickiness. Optics show some dust. There is some clouding. No mold is visible. Please check the photos for details. ◆ Operation Condition It is fully operational.