Sigma has announced an image-stabilized telephoto zoom in the shape of the 70-300mm F4-5.6 DG OS. Suitable for use on both APS-C and full frame cameras, this lens incorporates Sigma's Optical Stabilization technology allowing hand-held shooting at shutter speeds up to 4 stops slower than usual, along with a circular diaphragm for attractive rendition of out-of-focus backgrounds. The minimum focus distance is 1.5m giving a maximum magnification of 0.26x; unlike Sigma's non-stabilized 70-300mm zooms there's no extended macro focusing option. The lens will available for users of Sigma, Nikon, Canon, Pentax and Sony SLRs.
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