Sigma 70-200mm F2.8 EX DG OS HSM

Sigma's latest image-stabilized fast telezoom offers a fine option for budget-conscious buyers, with a unique combination of features for the price. It can't quite match its Canon and Nikon equivalents, but then again it's not as expensive either. Optically it's very good indeed, if a little soft at F2.8, and the autofocus and image stabilization systems are excellent.