Leica's flagship 50mm — the Summilux ASPH delivers legendary rendering with modern aspherical correction.
The Leica Summilux-M 50mm f/1.4 ASPH. is Leica's flagship standard lens for the M system. The ASPH element corrects the spherical aberration that softened earlier Summilux versions, delivering sharp results even wide open while retaining the characteristic Leica rendering.
Outstanding sharpness from f/1.4 with smooth, creamy bokeh. The rendering is distinctly Leica — a combination of micro-contrast, colour depth, and three-dimensionality that is difficult to quantify but immediately recognisable. 46mm filter thread keeps the package compact.
Leica M mount with 46mm filter thread. Multiple production runs exist — current ASPH version since 2004. Several special editions (Black Chrome, LHSA, etc.) exist at collector premiums. 335g weight. 70cm minimum focus distance.
Available used but expensive. Check for front element scratches and rangefinder coupling accuracy. Many finish variants — black, silver, black chrome — at varying premiums. The APO-Summicron-M 50mm f/2 ASPH is optically superior but slower.