leica summicron-m 50mm f/2 Ver.4 silver

Brand: Leica
Production Code: 11825
Serial Number: 3630782
Year of Production: 1993
Condition (appearance): A
Condition (Optical): A
Item Included: rear cap, filter, hood
Product ID: DZ0095
product description

introduced the "air" lens between elements in this design as well as the reduction of aberration by the last element with wider diameter. 6 elements 5 groups.