Thank you for viewing. ● Optics Dust has entered, but there is no mold or cloudiness, and the optics are clear and sharp. The aperture blades are in good condition with no oil. ● Function The helicoid is light. A clicking sound is heard when the aperture ring is turned. There are no operational problems. The aperture blades operate smoothly. ● Appearance There are minor scratches and dirt associated with use. Please check the photos. This is an auction for the lens body only. This is an antique item from over half a century ago. Please consider this before purchasing. #sunacamera