LEICA OTZFO* 16465 OUBIO 65MM ELMAR 135MM ELMAR FOCUS VISO VISOFLEX ADAPTER RARE
This extremely rare and hard to find Leica Otzfo* OUBIO focus mount is in great condition overall. A very unusual and difficult to find adapter ring. Made in 1960 only. It is a Leica Otzfo adapter ring but with a built in Oubio adapter ring all in ONE PIECE. Made to focus your 65mm Elmar, 90mm Elmarit, 135mm Elmar and 135mm Hektor lenses on your Visoflex II and Visoflex III reflex viewfinder attachments. Focusing is smooth and mounting well.