Leica's definitive M-mount 35mm — Summicron f/2 ASPH, the lens that defines M street photography.
The Leica Summicron-M 35mm f/2 ASPH (Black, 6bit) is a fast wide prime for Leica M-mount full-frame with 6-bit coding for digital M body metadata. Seven elements in 5 groups with aspherical elements. Eleven aperture blades. 39mm filter thread. At approximately 255g. 0.70m MFD.
Seven elements in 5 groups (ASPH). Eleven aperture blades. The 39mm filter thread. At approximately 255g. Minimum focus distance of 0.70m. 6-bit lens code for digital M body metadata correction. Manual focus only. f/2 maximum aperture. Full-frame coverage. Leica M mount.
The 6-bit coding enables digital Leica M bodies (M8, M9, M240, M11) to apply automatic vignetting and distortion correction profiles: the code on the lens mount tells the camera which optical design is attached, enabling in-camera correction. The Summicron designation indicates f/2. The ASPH formula provides high optical correction across the full-frame field at f/2.
On the used market the Leica Summicron-M 35mm f/2 ASPH (6bit) is available as a classic Leica M wide prime. Condition checks: 6-bit code contacts on lens mount, focus helicoid smoothness, 39mm front element for marks. Compatible with all Leica M-mount bodies (6-bit benefits digital M bodies).