Daily high performing Sigma 24-70mm f/2.8 IF EX DG HSM is designed for various photography needs including wedding, events, portraits, and landscape. The Sigma 24-70mm possess a large aperture of f/2.8 and high speed standard zoom lens. The lens features hyper sonic motor (HSM) that promises quiet fast autofocusing. The ASP, aspherical lens, gives you the freedom of design, enhanced performance, a minimal number of component lenses and a compact size. The lens includes a full time manual override permitting instant control in low-light conditions. Although lightweight and compact. The Sigma 24-70mm f/2.8 delivers the ultimate performance when shooting in fast paced situation or low light situations.