Overview

The Mir-1B 37mm f/2.8 is a Soviet-era lens based on the Carl Zeiss Jena Flektogon 35mm f/2.8, known for its robust all-metal build and smooth handling. Optically, it offers swirly bokeh with 10 aperture blades for round highlights, but is soft wide open, sharpening by f/4 and becoming tack sharp at f/8. Its 270° focus ring allows precise manual focus. It suits vintage enthusiasts and filmmakers seeking affordable character, though it demands skill to master.