Covering a 150-500mm focal length with 4-stop optical stabilization, this lens delivers handheld reach for full-frame Sony A-mount bodies. The HSM autofocus is quiet and responsive, while three ED elements with multi-layer coating help control aberrations at the variable f/5-6.3 aperture. It’s best suited for outdoor wildlife and sports enthusiasts needing an affordable super-telephoto zoom without sacrificing stabilization.