37mm · f/2.8
The Mir-1 37mm f/2.8 is a Soviet-era lens based on the Carl Zeiss Jena Flektogon 35mm f/2.8. It features a robust all-metal build and a 270° focus ring for precise manual control. Optically, it is soft wide open with swirly bokeh but sharpens by f/8; its 10-blade aperture maintains round bokeh when stopped down. Weaknesses include low contrast and edge softness at f/2.8 and a 0.7m minimum focus. It suits videographers and vintage enthusiasts seeking character and affordable manual lenses.