What is 55-200 lens canon?

The Canon 55-200mm lens is a telephoto zoom lens designed for Canon EOS DSLR cameras. It has an aperture range of f/4-5.6, which varies depending on the focal length. The lens has 11 elements in 9 groups, including one UD (Ultra-low Dispersion) lens element that helps to reduce chromatic aberration. It also features a close focusing distance of 1.1 meters (3.6 feet) and a maximum magnification ratio of 0.21x, making it suitable for capturing distant subjects in detail. The lens also has a compact and lightweight design, making it easy to carry around while traveling. The lens is typically used for portrait photography, wildlife photography and sports photography.