Advanced Optical Design. The Leica 35mm f/1.4 Summilux M ASPH II is characterized by exceptionally brilliant contrast, superb resolution and detail rendition, and virtually coma-free images. The complex optical design—which includes an aspherical lens surface—produces an image quality that’s unsurpassed in compact 35mm lenses, even at full aperture.

High-Quality Build. This updated version of the 35mm features a floating element, meaning that the lenses behind the aperture blades are constructed as a floating group that changes its position relative to the front lens group during focusing to achieve high-quality performance at closer focusing distances. The new full-metal, rectangular, screw-mount lens hood contributes significantly to this lens’s compact dimensions.

Automatic Lens Identification. This lens features “6-bit” coding, which allows the digital M camera to read this information optically and to identify which lens is being used. The camera can then apply optional “final-stage” software-based vignetting correction.