The Sigma 28-70mm F2.8 DG DN Contemporary ($899) is a relatively compact zoom lens for full-frame cameras. It's smaller and less expensive than more common 24-70mm F2.8 optics, adding appeal for ...

Sigma is adding another mirrorless lens to its growing catalog. Its 28-70mm F2.8 DG DN Contemporary has plenty of appeal for mirrorless photographers thanks to a design that's notably lighter than ...

Sigma have issued a lens compatibility notice for their lenses when used with the new Canon EOS R mirrorless camera. There are no known issues with general operation, but Sigma do state that the ...

The 4 Sigma EF lenses that successfully autofocused with the Sigma adapter were the 20mm, 24mm, 35mm and 50mm (all f/1.4). The MC-11 adapter provided fast and accurate PDAF and the full range of AF ...