The product is a Carl Zeiss Sonnar T 85mm f/2.8 lens, manufactured in Germany in the 1970s. It is a telephoto portrait lens made of aluminum, with a manual focus and a 55mm front lens. This lens is compatible with Contax and Yashica cameras, and it is part of the Carl Zeiss T* series, known for its high-quality optics and construction. With a maximum aperture of f/2.8, this lens delivers sharp images and smooth bokeh, making it ideal for capturing portraits and other telephoto shots with precision and clarity. Fast shipping is available for this super clean lens.