Description: Focal Length: 8mm
Aperture: f/3.8
Dimensions: 73.5mm x 68.6mm
Weight: 400g
Max Magnification: 1:4.6
Lens Construction: 11 elements in 6 groups
Angle of View: 180 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