Covering the most popular focal length range from 28 mm wide to 80 mm mid-range telephoto, this ideal zoom has tele-macro capability for a maximum magnification ratio of 1: 2, plus a minimum shooting distance of under 9.5 inches. Everything - from grab shots to portraits to close-ups - is possible. Sigma's exclusive optical technology makes optimum use of aspherical lens elements to achieve results on par with fixed focal length lenses throughout the entire range. And with an overall length of 2.7 inches and a weight of under 9 oz., this lens is perfect for the photographer on the go.