This Canon EF 50mm 1:1.4 Ultrasonic Lens is a high-quality lens that is perfect for Canon cameras. It has a maximum aperture of f/1.4, which allows for beautiful, crisp images with a shallow depth of field. This lens is compatible with Canon EF mount cameras and is made in Japan. The lens is an ultrasonic type with auto and manual focus, making it versatile and easy to use. Its fixed/prime focal length of 50mm is perfect for portrait photography, and it is compatible with a 58mm filter size. The lens is in great working condition and has been well-maintained.