Sigma 28-300 F3.5-5.6 IF Compact Hyper Zoom Aspherical Lens-Minolta Zoom ratio of 10.7:1 Full coverage of a wide range of shots from panoramic views to close-ups-all in one lens Length of only 3.5 inches provides great mobility Special Low Dispersion glass and aspherical lenses give it high optical ability Inner focus system that allows it to be focused without having to turn the front of the lens