The RF600mm F11 IS STM super-telephoto lens provides a long 600mm focal length and is the first compact and lightweight 600mm super telephoto lens in the RF lineup. This lens is ideal for bird, wildlife, outdoor sports, and aviation photography. The size of this lens and its retracting design make it a highly portable option which can be stored easily in a camera bag and the built-in optical image stabilization with up to five stops of shake correction makes it easy to use either hand-held or with a monopod. The RF600mm F11 IS STM lens will also accept an RF 1.4X or 2.0X teleconverter to increase your focal length to 840mm or 1200mm respectively.