The Olympus 50 mm F/1.4 is a manual focus lens with a focal length of 50 millimetres (mm) and a maximum aperture of F/1.4. This Olympus lens is designed for the Olympus 35 mm OM-System, a line of single-lens reflex (SLR) cameras. The 50 mm F/1.4 lens weighs 230 grams and has a diameter of 60 mm. Furthermore, the Olympus 50 mm F/1.4 has a 51-mm slide-on lens hood that helps to eliminate flare and to protect the lens from damage when banged. The Olympus lens also is characterised by a 47-degree angle of view. In addition, the 50 mm F/1.4 lens consists of seven elements in six groups. This allows for high contrast and high resolution and gives reasonable optical quality at full aperture. The closest focus of the Olympus 50 mm F/1.4 is 0.45 metres, and its straight helicoid focusing mechanism enables it to lengthen its focus to infinity.