The Canon 200-400mm lens is a 135mm full-frame lens with a built-in 1.4X teleconverter and top-notch red circle quality. It combines the excellent image quality of an L-class super telephoto lens with the excellent maneuverability brought by the built-in extender. This lens alone can handle a variety of photographic subjects such as sports, wildlife, and news reports. It is very practical and its sharpness cannot be overemphasized. But the price of more than 60,000 yuan is beyond the reach of ordinary people.