The Canon EF Ultrasonic 70-200mm f/4 L USM Zoom Lens is a high-quality telephoto lens designed for Canon cameras. With a maximum aperture of f/4, this lens allows for excellent low-light performance and shallow depth of field. The ultrasonic motor ensures quick and quiet autofocus, making it ideal for capturing portraits, wildlife, and sports photography. Compatible with Canon cameras that have an EF mount, this lens also features a 67mm front lens and filter size. Made in Japan, this Canon lens is a reliable and versatile choice for photographers looking to expand their kit.