This is a Nikon EL-NIKKOR 63mm f/2.8 enlarging lens. It is an enlarging lens for darkroom photography. The focal length is 63mm. The maximum aperture is f/2.8. Made in Japan. This is a used item. Please check the photos carefully and assess the condition. Operation has not been confirmed. We do not have knowledge of this product, so we cannot assess the condition. This is an unwanted item and has not been maintained, so we will consider it a junk item. Would anyone who can repair it be interested? Due to being a used item, there are noticeable stains and scratches. Please note that we cannot completely clean it.