The Vivitar Wide-Angle 28 MM 1:2.8 Manual Focus Lens is a used lens compatible with Nikon F cameras. It has a maximum aperture of 2.8-22 and a focal length of 28mm, making it suitable for wide-angle shots. The lens is made of aluminum and was manufactured in the 2000s in Japan. It is a manual focus lens and is compatible with 28mm filters. The lens is part of the Auto Telephoto series and is sold as a single unit.