A Phase Fresnel element and magnesium alloy build shrink this 500mm prime to just 3.2 lbs, enabling handheld shooting with 4-stop Vibration Reduction. Its Nano Crystal Coat and three ED elements deliver high contrast and sharpness across the frame, even wide open at f/5.6. This lens is best for wildlife and sports photographers who need a lightweight, full-frame super-telephoto for extended field use.
