Canon's fast rangefinder wide — 35mm f/2 in Leica Thread Mount, manual focus.
The Canon 35mm f/2 is a fast wide-angle rangefinder lens made in Japan for the 39mm Leica screw thread. It arrived late in Canon's rangefinder era, when the company was pushing its screw-mount wides to larger apertures. It gave Leica-thread and Canon rangefinder users a bright 35mm for available-light work.
This is a manual-focus, rangefinder-coupled Leica Thread Mount lens with a 35mm focal length and a maximum aperture of f/2. The mount is the 39mm Leica screw thread (LTM / L39 / M39). Focus and aperture are set by hand on the barrel. Element count, weight and filter thread are omitted here as they are not verified from the gap data.
A fast 35mm is a favourite reportage and street focal length, and at f/2 this lens allows shallower depth of field and handheld work in dim conditions. Wide open it renders with the softer, lower-contrast look typical of fast rangefinder wides of the period, tightening up as it is stopped down. The 35mm field stays natural for close-in documentary work.
When buying used, inspect for haze, fungus and balsam separation in the cemented groups. Check coatings for cleaning marks and wear, test the aperture blades for oil, and confirm the focus helicoid turns smoothly. Verify rangefinder-coupling accuracy on a body, which matters most with faster lenses. It adapts well to Leica M via M39-to-M and to mirrorless with M39-to-E, M39-to-Z or M39-to-RF adapters.