Why settle for less when you can experience the power and precision of the Rf 600mm f/4 L Is Usm Lens from Canon This high-quality super telephoto lens is a must-have tool for professional and advanced photographers who demand nothing but the best in their craft. Whether you're capturing the grace of wildlife, the thrill of motorsports, or any other distant subject, this lens delivers exceptional image quality synonymous with Canon's L series.The Rf 600mm f/4 L Is Usm Lens boasts up to 5.5 stops of image stabilization, a feature that significantly reduces camera shake. This ensures consistently sharp and clear images, even when shooting in challenging conditions or at extended focal lengths. One of the standout features of this lens is its customizable electronic manual focus ring. With three different speed levels to choose from, you can adjust the manual focus to suit your specific shooting preferences.