Vologda 37mm f2.8 MIR-1B for M42 lens mount_Micro Four Thirds That big round thing on

That big round thing on the front is a Selenium light meter

8 6BL 64X is a high quality neutral density filter with 6 stops of neutral density

we don't have any

a swiveling 3/8" threaded connector for microphone mounting

Vologda 37mm f2.8 MIR-1B for M42 lens mount_Micro Four Thirds That big round thing onThe Vologda 37mm f2. 8 MIR 1B lens is a classic Soviet made wide angle lens. Of course, it's a bit weird: the preset diaphragm system appears to work in the opposite direction of the markings, and it focuses past infinity. Why? I do not know. Takes a perfectly decent picture, though. Includes original bubble case and instructions (in Russian, naturally)