Nikon 20-35mm f/2.8 R-UW AF lens with caps for RS-AF Nikonos 35mm SLR underwater camera. The glass has some light haze and what looks like separation in one of the front elements. This can be seen in the photos.The zoom control works smoothly and correctly. The lens focuses correctly in auto focus or manual focus modes. The aperture control works correctly. The lens shows light wear from normal usage.