The Sigma 24-105mm F4 DG OS HSM is the standard zoom lens from the Sigma "Art" line, offering stable and fine image quality from wide to mid-telephoto range.

The lenses in question are the Sigma 28-45mm T2 Cine and Sigma 28-105mm f/2.8 DG DN Art. First up, the Sigma 28-45mm T2 Cine lens is a prototype, or 'concept' lens as Sigma prefers it, which was ...