The Canon Zoom Lens EF 24-70mm 1:4 L IS USM is a high-performance zoom lens that is perfect for a wide range of photographic applications. With a maximum aperture of f/4, this lens is ideal for low-light shooting and provides excellent image quality. The lens features Canon's Image Stabilization technology, which helps to reduce camera shake and produce sharper images. It is designed for use with Canon EF mount cameras and has a focal length range of 24-70mm.