You are bidding on a wonderful, Rexagon Automatic 28mm  1:2.8  Wide-Angle M42 screw Mount - The Rexagon Automatic 28mm f/2.8 is a wide-angle prime lens for 35 mm SLR camera systems popular in the 1970-80's. "VINTAGE" Lens in good working conditions, physically it present some signs of wear, clearly visible on actual photos of the item on sale. Lens require cleaning. Last two images shoot with Nikon D with M42 adapter.