The Leica Super-Elmar-M 21mm f/3.4 ASPH. M-Mount lens is a worthy successor to the now legendary Leica Super-Angulon-M 21 mm f/3.4. Just like its popular forerunner, this super-wide-angle lens is characterized by superb imaging performance and amazingly compact construction. Even at maximum aperture, the lens delivers outstanding rendition of details and optimum contrast up to its closest focusing distance. The lens is supplied complete with a metal, screw-mounted lens hood to prevent flare effects and ensure perfect image sharpness. Thanks to its wide angle of view, the Leica Super-Elmar-M 21mm f/3.4 ASPH. is particularly suitable for architectural and landscape photography. At the same time, this focal length is also ideal for dynamic photojournalistic photography. The sophisticated optical design and construction of the lens comprises eight elements – including one with two aspherical surfaces and another four with anomalous partial dispersion – and plays a decisive role in reducing distortion and vignetting to an absolute minimum. With the Super-Elmar-M, M photographers now have a compact and versatile high-performance lens for the broad spectrum of photographic situations covered by super-wide-angle photography.