Nikon Type...Standard Focal Length (Wide)...13-18mm Focal Length (Telephoto)...51-70mm Open F-value...2.9-4 Other Features...With front lens cap, with rear lens cap, with lens hood A small amount of dust can be seen, but no mold or fogging is observed. The exterior is relatively clean. Purchased as a used set and only used once. Operation is not a problem.