Sigma 18-200mm f3.5-6.3 DC Macro OS HSM Contemporary Review The Sigma 18-200mm f3.5-6.3 DC Macro OS HSM belongs to the lineup of Global Vision lenses from Sigma and fits in

Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary Review Sigma introduced a pair of Sigma telephoto zoom lenses at the most recently held Photokina. These comprised of the Sigma 150-600mm f/5-6.3

Sigma 18-35mm f/1.8 DC HSM Art Review A part of Sigma’s Art series, the Sigma 18-35mm f/1.8 DC HSM is a wide-angle to standard zoom lens that is meant for