Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens for Nikon F

Touting Sigma's Optical Stabilizer (OS), the Sigma 100-400mm 5-6.3 Contemporary is highly compact and lightweight compared to similar products on the market. A push/pull zooming function and a new Hyper Sonic Motor (HSM) allow for a more responsive approach to photography while a 1:3.8 macro feature can be utilized from up close or from a further distance.