Offering an impressively versatile range with a portable form factor, the Sigma SA-mount 150-600mm f/5-6.3 DG OS HSM from Sigma is a Contemporary-series telephoto zoom characterized by its sophisticated optics and flexible handling. One FLD element and three SLD elements are used to reduce color fringing and chromatic aberrations throughout the zoom range and a Super Multi-Coating also helps to suppress flare and ghosting for improved contrast and color accuracy when working in strong lighting conditions.