Sigma 150-600mm f/5-6.3 Contemporary DG OS HSM Telephoto Lens: Get the shot you want by attaching this telephoto lens to your Canon full-frame SLR camera. With optical stabilization and a zoom lock switch, you'll get the performance and versatility you need to capture clear photos in a variety of settings. Plus, the lens features a water- and oil-repellent coating and a dust- and splash-resistant design.