Zunow 50mm f/1.1 Ball Shape Rear Element

Brand: Zunow
Production Code: 3672
Serial Number: 3672
Condition (appearance): A
Condition (Optical): A-
Item Included: rear cap, hood
Product ID: CZ0069
product description

the development of the lens began in 1943 during world war ii for the japanese navy. it was the fastest lens commercially available at the time. the lens is a sonnar-type design, and comes in original leica screw mount. 9 elements 5 groups.