Lens has Pentax A mount. SN 5240903. Lens comes with used rear and front caps as pictured. Lens has built in hood. Lens will be shipped as pictured, so please look at the pictures above. Shipping is free within USA and $35 via USPS first class air mail service worldwide. You can choose faster (and more expensive ) shipping if desired during checkout. Cosmetic Condition: Lens has been used, but it is in good cosmetic condition. It shows light wear on the lens barrel from use. I don't see any noticeable scratches on front or rear glass coating. Glass looks very nice over all. I don't see any haze or fungus inside. I don't see any dust specs inside the glass elements. Very bright and clean lens. I'd say glass looks just like new condition. Aperture blades are snappy and free of oil. Manual focus is smooth, without any play. Filter threads are not damaged. Lens has no known issues that it would prevent from working properly. Everything works good. Lens has been fully tested by our tech guys. I guaranty that it will arrive as described or your money back.