Fujifilm's early Fujinon normal — the 1954 50mm f/2 in Leica Thread Mount.
The Fujinon 50mm f/2 in Leica Thread Mount dates to 1954, from Fuji's early rangefinder-lens production for L39 bodies. It is a vintage Japanese screw-mount normal made when Fuji supplied lenses for the Leica-thread camera market, and it sits alongside the other Japanese fast fifties of the mid-1950s.
It is a manual-focus rangefinder-coupled lens with a 50mm focal length and a maximum aperture of f/2. As a period normal it uses a compact optical design and couples to the rangefinder for accurate focusing on screw-mount and adapted bodies.
At 50mm the lens gives a natural standard view for portraits, street and general work, and f/2 allows moderate low-light use and background separation. Early Fujinon normals are regarded for clean, contrasty rendering, with sharpness improving across the frame when stopped down a couple of stops.
As a vintage lens, used copies need inspection for haze, fungus, cleaning marks and coating wear, plus checks of the focus feel and the aperture blades for oil. Confirm accurate rangefinder coupling and infinity focus before buying. It adapts to Leica M with an LTM-to-M ring and to mirrorless cameras via an adapter.