50100mm

Sigma today announced a new groundbreaking 50-100mm f/1.8 DC HSM Art APS-C lens, the first telephoto zoom lens with a constant f/1.8 aperture. The company also unveiled a 30mm f/1.4 DC DN Contemporary mirrorless lens, the first affordable f/1.4 for that segment.

Whoa. Sigma is on the brink of shaking up the camera lens industry yet again with another groundbreaking Art lens. Next week, on February 23rd, 2016, Sigma will reportedly announce a new 50-100mm f/1.8 DC HSM Art lens -- a zoom lens with an unusually large f/1.8 fixed aperture.