I am offering for sale my Mamiya 500mm f/4.5 APO lens. It is an extraordinary lens that is as sharp and well corrected as any that have followed and creates absolutely incredible images. I have used it with both film and digital cameras including my Leica S2, via an adapter, and PhaseOne P40+ and it has provided consistently excellent results in any format. This is a rare and wonderful item. This lens has been well cared for but it did sustain a "bump" a while back; optically, it is unblemished and has lost nothing but the built in hood is a slightly out of round and is stuck in mid extension. It has since been professionally gone over and "tuned up" by Nippon Photo Clinic in New York and is perfect optically. My reason for selling is that my photographic interests have taken a different direction and I no longer am using this lens. I can provide pictures upon request. I need to net $4500 including shipping.