Junk Nikon AF-S Micro NIKKOR 40mm f/2.8G TA2859 This item is listed as junk because the lens aperture cannot be automatically controlled and must be adjusted manually. There may be other defects as well. This is an item for parts or for those who can repair it. This is a defective, junk item. Please consider purchasing with the understanding that it is defective. Thank you for viewing.