Standard lens for Alpa. Macro Switar 50mm. Cinema lens manufacturer, Kern produced. 7 elements in 5 groups. Apochromat lens. Great image quality. Slight signs of use found yet still in very good condition as this lens. Beautiful elements. Comes with caps, and filter that replaced glass to malticoated. Rear cap is repaired and fits well. Just came back from customer after careful use. Fully serviced in 2021. Excellent working condition. Slight paint peels found on barrel. Very clean and clear elements without haze. No balsam separation. You can enjoy very beautiful picture at close foucus. This is a great lens.