Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary Lens sells for $799, can be pre-ordered
Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary at a glance: EF-Mount Lens/Full-Frame Format Aperture Range: f/5 to f/22 Four SLD Glass Elements Super Multi-Layer Coating Hyper Sonic AF Motor, Manual…