The RF100-500mm F4.5-7.1 L IS USM super-telephoto zoom lens delivers a superb combination of cutting-edge performance, compact construction and brilliant resolving power specifically designed for the EOS R system. The versatile range of 100mm to 500mm is ideal for sports, wildlife, and even aviation photography while maintaining a compact, travel-ready size and weight. The lens features one Super UD and six UD lenses.  Fluorine coated front and rear lens elements provide resistance to dirt, moisture and oils, while L-series construction with dust and weather resistance provides reliability even in challenging conditions. With its built-in, 3-mode, and up-to 5-stop optical image stabilization system, and high-speed Dual Nano USM autofocus motors, the RF100-500mm F4.5-7.1 L IS USM will prove its superb optical performance, over and over again.