This is a Sears 70 to 210mm f4.0 Macro/One Touch Zoom Lens that is compatible with Canon cameras and Minolta MD Mount. It was manufactured in the 1980s and has an exterior made of aluminum. This lens is a zoom lens with a maximum aperture of f/4 and a focus type of zoom. It also has a macro/close-up function and is compatible with a 55mm lens front and filter size. The lens model is 202 and it was made in Korea. This lens does not come with a manufacturer warranty.