The Pentax Asahi Super-Multi-Coated SMC Takumar 55mm F/1:2 is a high-quality lens designed for Pentax cameras. With a maximum aperture of f/1:2, it is perfect for low-light photography and creating a shallow depth of field. The lens is made of brass and has a fixed focal length of 55mm, making it suitable for wide-angle, portrait, and standard shots. It is compatible with 49mm filters and weighs 201g. This lens is a great addition to any photographer's collection.