The Canon EF 200mm is a prime telephoto lens designed for Canon's full-frame and APS-C DSLR cameras. It features a fixed focal length of 200mm, making it ideal for capturing distant subjects with clarity and detail. The lens has a maximum aperture of f/2.8, allowing for excellent low-light performance and beautiful background blur, or bokeh. This lens is popular among photographers for portrait, wildlife, and sports photography due to its sharpness and fast autofocus capabilities. Its robust build quality ensures durability, while the lightweight design makes it easier to handle during extended shooting sessions.