Popular Photography have just published a short review of the Sigma 24-60mm F2.8 EX DG lens (PDF format).

“This lens is about 22 percent lighter and more compact than Sigma’s slightly longer 24-70mm f/2.8; its SQF performance is significantly better, too. Overall, a fine optic choice.”

Website: Popular Photography - Sigma 24-60mm F2.8 EX DG Lens Review