The lens is in mint optical and mechanical condition. The glass is clean and very clear with no scratches, no cleaning marks, no haze, no fungus, minimal dust. In my tests it performs remarkably well with excellent sharpness and contrast from wide open.The aperture works properly, snappy with no oil on blades. Focusing is easy and smooth. Cosmetically it has some light signs of brassing along the edges, but no scratches or dents anywhere, looks great, please see pictures.