Komura's compact reportage wide — the 35mm f/2.8 in Leica Thread Mount.
The Komura 35mm f/2.8 in Leica Thread Mount is a vintage Japanese wide-angle made by Sankyo Kohki under the Komura name, a maker of screw-mount rangefinder and other interchangeable lenses. It is a moderate wide produced for L39 bodies, one of several third-party fittings the company offered.
It is a manual-focus rangefinder-coupled lens with a 35mm focal length and a maximum aperture of f/2.8. As a period wide it uses a compact optical design and couples to the rangefinder for focusing on screw-mount and adapted bodies, with 35mm frame lines or an accessory finder for composition.
The 35mm focal length is a flexible reportage and street angle, and at f/2.8 the lens suits general daylight, travel and documentary shooting. It sharpens across the frame as it is stopped down, giving even results at the middle apertures.
As a vintage third-party lens, used copies should be checked for haze, fungus, cleaning marks, coating wear and any element separation, plus the focus feel and aperture blades for oil. Confirm rangefinder coupling and infinity focus. It adapts to Leica M with an LTM-to-M ring and to mirrorless cameras via an adapter.