Sigma to Unveil a Crazy Fast 50-100mm f/1.8 Art Lens

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.