The Canon EF 500mm is a professional-grade telephoto lens designed for use with Canon DSLR cameras. It features a large aperture of f/4, allowing for excellent low-light performance and beautiful background blur. This lens is ideal for wildlife and sports photography, providing a long reach to capture distant subjects with clarity. Constructed with high-quality optics, the Canon EF 500mm includes advanced lens coatings to reduce flare and enhance contrast. It also has a durable, weather-sealed design, making it suitable for outdoor use in various conditions. The lens is compatible with Canon's teleconverters, further extending its focal length.