Overview

The Sigma 105mm F2.8 EX DG OS HSM is a versatile macro lens offering 1:1 magnification and solid optical performance with good sharpness and well-controlled chromatic aberrations. Its build is mainly plastic but feels sturdy, though it lacks weather sealing. Autofocus is silent and precise but slower than average, and the optical stabilization works well but can be noisy. It suits macro and portrait photographers seeking good value, especially on a budget.