Description: Focal Length: 50-150mm
Aperture: f/2.8
Dimensions: 76.3mm x 135mm
Weight: 770g
Max Magnification: 1:5.3
Lens Construction: 18 elements in 14 groups
Angle of View: 27.9 - 9.5 degrees
Compatible mounts: Sigma, Canon, Nikon D
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Three new Sigma lenses Digital SLR optimisation is the order of the day for Sigma, who has announced a telephoto/zoom lens, a macro lens and even a fisheye lens that are designed for perfect use with digital cameras. - 15/8/06