The Sigma 100-400mm f/5-6.3 DG OS HSM C, Canon EF Fit? is a telephoto zoom within Sigma's Contemporary series that blends both a refined optical design with a compact and lightweight physical construction. On the optical front, this zoom utilises four SLD glass elements to noticeably reduce chromatic aberrations and colour fringing throughout the zoom range for improved clarity and colour accuracy, and a Super Multi-Layer Coating has also been applied to increase contrast when working in strong lighting conditions.
