The Vivitar 135mm f/2.8 Auto Telephoto Lens is a vintage camera lens made in Japan, featuring a maximum aperture of f/2.8 and a focal length of 135mm. This lens is compatible with Vivitar cameras and has a M/SR bayonet mount. It is part of the Vivitar Series 1 and is made of aluminum, making it a durable and high-quality lens. The lens also comes with a hood and is designed for 55mm front lens filters. This lens is a great choice for photography enthusiasts looking to capture telephoto shots with a vintage Japanese feel.