Leica M Series Lenses Compact, lightweight and covering an optimum range of practical applications, Leica M lenses offer a unique optical performance that has secured them a leading position throughout the world. With focal lengths ranging from 21 to 135mm and speeds of up to f/1.0, these valuable precision lenses are distinguished for their superb imaging performance and long service life. Other features include: Excellent sharpness, high-contrast performance and an extreme resolving power even at full aperture Extremely compact design using lens elements with high refractive indices and low dispersion values Uniform, neutral colour rendition Exceptional freedom from flare due to special Leica multiple coating Long service even in tough, everyday professional use and smooth focusing thanks to the mechanical precision of the metal helical focusing mounts. Extremely fast for a 75 mm lens, its f/1.4 speed makes this lens ideally suited for available light photography, particularly in portraiture and photojournalism. It is also an excellent lens for large contrasts in brightness that you might encounter in concerts, theaters or in a circus. Unique optical glasses and an optimized optical computation give this high-speed lens unexcelled performance characteristics. Among other features, experts especially value its great freedom from reflections and the delicate gradation of its tonal rendition. This lens features built-in sliding lens hood.