The Leica Summicron-M pairs a popular focal length with bright maximum aperture for flexible control and high image quality in a refined optical design. The relatively compact design is perfect for everyday use and it has a manual focus with a minimum focusing distance of 2.3 ft. and maximum magnification ratio of 1:17.5. The aspherical lens surface technology of this standard wide-angle lens provides for crisp, sharp images with a high degree of sharpness, contrast, and clarity while the f/2 maximum aperture enables working in difficult lighting conditions with ease. Known for its versatility and all-around performance, this high-speed prime lens offers outstanding imaging performance across the entire focusing range as an 11-blade aperture helps smooth out-of-focus rendering when working with selective focus and shallow depth of field techniques.