Leica's legendary fast 35mm for M — Summilux f/1.4 across multiple versions spanning decades.
The Leica Summilux-M 35mm f/1.4 is one of the most iconic lenses in photography, produced in multiple versions since the 1960s. The Summilux designation indicates f/1.4 maximum aperture — one stop faster than the Summicron f/2. The ASPH versions are the most sought-after.
Optically varies by version — pre-ASPH versions have characterful rendering while the ASPH (1994 onwards) and FLE (2010) versions deliver outstanding modern sharpness. All versions share the Summilux rendering character. Manual focus with Leica rangefinder coupling.
Leica M mount. Filter thread varies by version — 46mm on most modern versions. Compact and lightweight. All-metal construction. Rangefinder coupled. 6-bit coded bayonet on current versions for digital M communication.
Available used at luxury prices — the 35mm Summilux is among the most valuable Leica lenses. Pre-ASPH versions are cheaper but still expensive. The FLE version is the current pinnacle. Check for haze, separation, and rangefinder calibration. The definitive Leica M street lens.