For this lens with an exceptionally high aperture of F1.2, Leica Camera AG has redefined the name Nocticron. The classic medium telephoto focal length of 42.5 mm (equivalent to 85 mm in full-frame cameras) is ideal for portrait photography. The large aperture allows for precise control over shallow depth of field. The 9 diaphragm blades create a round aperture, resulting in particularly beautiful bokeh in the out-of-focus areas. Choose a Leica DG lens with ultimate optical quality and performance. The lenses naturally meet the strict quality standards of Leica Camera AG. Capture subjects with ease or spontaneity. The optical image stabilization (O.I.S.), a technology integrated directly into the lens, ensures great photos with sharp, shake-free contours across all areas of the image. Minimize unwanted light reflections thanks to the nano surface coating on the system lenses. This special, ultra-thin coating was developed by Panasonic to reduce disturbing light reflections across the entire light spectrum. The result is crystal-clear images even when photographing light sources in the dark.