Thank you for viewing. The mount type is MD mount. The exterior shows some signs of use, but is relatively clean. The focus ring is smooth. The aperture ring has a good click feel. There is no oil on the aperture blades. The lens has been cleaned, but there may be some slight dust. There is a barely noticeable trace of mold on the rear element. There is a very thin haze on the front element. Included accessories: lens caps (front and rear) If you have any questions, I will answer them to the best of my ability. Thank you.