Sep 23, 2008
Sigma’s 24-70mm F2.8 IF EX DG HSM is a replacement for its older 24-70mm F2.8 EX DG Macro lens. This large aperture standard zoom is considerably more compact than its predecessor, thanks to a brand new optical design which features 14 elements in 12 groups, including three aspherical, one ELD and two SLD elements. The HSM focusing motor promises fast and silent focusing coupled with full-time manual focus, and the minimum focus distance is 38cm allowing a maximum magnification of 1:5.3. Although not as good as the current best-in-class, Canon's Mark II version of its EF 24-70mm F2.8, the Sigma stands up very well indeed optically.