The Nikkor-S 50mm f/1.4 is a manual focus prime lens with excellent optical performance. - Model Name: Nikkor-S 50mm f/1.4 - Country of Manufacture: Japan - Lens Type: Prime lens - Lens Diameter: Approximately 52mm - Filter Diameter: Approximately 52mm Thank you for viewing. The exterior shows some signs of use. The focus ring is smooth. The aperture ring has a good click feel. There is no oil on the aperture blades. The lens has been cleaned, but there may be some minor dust. There is no mold or haze, but there are a few thin scratches on the front element. It is believed that these will not affect the photos. Included accessories: Lens caps (front and rear) If you have any questions, I will answer them to the best of my ability. Thank you.