The F2.8 zoom lenses are indispensable for most professional photographers. 70-200mm F2.8 lenses, in particular, are expected to deliver their full performance in a wide range of demanding subjects, from reportage to sports and landscape to portraits. The SIGMA 70-200mm F2.8 DG OS HSM | Sports has a high optical quality, a robust design and excellent handling - features that professional photographers and demanding amateurs need.