The SMC PENTAX-M 28mm f/3.5 Wide Angle MF Lens is a vintage lens designed for Pentax cameras with a K mount. This manual focus lens, part of the Pentax SMC series, offers a maximum aperture of f/3.5 and a focal length of 28mm, making it ideal for capturing wide-angle shots. Made in Japan in the 1970s, this lens features a durable plastic exterior and is compatible with 49mm filters. With a manufacturer warranty of 1 month, this unit is a reliable choice for photographers looking to expand their creative capabilities.