Leica Apo-Summicron-SL 75mm F2 Asph.
The Leica Apo-Summicron-SL 75mm F2 Asph. lens fills the gap between a normal lens and a telephoto lens. It is an optically refined short telephoto prime lens designed for full-frame L-mount mirrorless cameras. In addition to the somewhat long, versatile focal length, a bright f/2 maximum aperture offers great control over the depth of field and is also suitable for shooting in less ideal lighting conditions. The apochromatic optical design uses aberrant partial dispersion glass to suppress color fringing and chromatic aberrations for high brightness and color accuracy. An aspherical element is also used to reduce spherical aberrations for improved sharpness. Also, multi-layer coatings have been used to limit lens flare and ghosting for better contrast when working under strong light. In addition to the optical elements, there is a Dual Syncro Drive stepper motor, which delivers fast and quiet autofocus performance, and a system with floating elements ensures consistent image quality throughout the entire focus range. In addition, an AquaDura coating is applied to the exposed parts and seals in the lens design are processed to be able to work under severe weather conditions.