Multi-coated zoom lens with a focal length of 70-210mm and a maximum aperture of f/4. - Focal Length: 70-210mm - Maximum Aperture: f/4 - Lens Type: Zoom Lens - Features: Multi-coating - OM Mount Thank you for viewing. The exterior is relatively clean. The focus ring is smooth. The aperture ring has a good click feel. There are no oil spots on the aperture blades. The lens has been cleaned, but there may be slight dust. It is clear with no mold or fogging. A slight spring sound can be heard when shaken. Other features: Comes with front lens cap, comes with rear lens cap, vintage lens I will answer any questions to the best of my ability. Thank you.