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

The Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary lens is a telephoto zoom designed for Nikon F-mount cameras with a versatile focal range suitable for wildlife, sports, and distant subject photography. The optical design incorporates four Special Low Dispersion elements and Super Multi-Layer Coating to minimize chromatic aberrations and lens flare while delivering contrast-rich imagery across the zoom range. The lens features a Hyper Sonic Motor for fast and quiet autofocus with full-time manual focus override, complemented by an integrated Optical Stabilizer that reduces camera shake for sharper handheld shooting.

The lens construction utilizes Thermally Stable Composite material with a brass bayonet mount and dust- and splash-resistant sealing for durability in varied environmental conditions. A rounded nine-blade diaphragm provides smooth bokeh quality, while dual zoom mechanisms (twist and push-pull) offer convenient control over framing. The compact, lightweight design makes this lens practical for extended handheld use, and it is compatible with optional Sigma teleconverters for extended reach.