Up for sale is a Nikon 50mm f/1.4 non-Ai prime, very clean lens. The focus is smooth, aperture is snappy and free of oil. The glass is in excellent condition free of scratches/fungus/haze. This was the last version of the non-Ai lenses, very sharp glass. Works well with Nikon and even with Canon DSLR via adapter, a great cinema lens. $145 shipped, paypal please. Thanks, Austin.