Photokina 2006: Sigma has announced the interesting 18-50 mm F2.8 EX DC Macro lens. Like all other DC lenses this is designed specifically for digital SLR's with APS sized sensors. It offers a maximum aperture of F2.8 throughout the zoom range and a minimum focus distance of 20 cm (7.9 in). In addition the lens features aspherical and low dispersion elements. This should be an interesting alternative to the often poor kit lenses bundled with sub-$1000 digital SLRs. On a digital SLR with a 1.5x FOV multiplier this lens provides an equivalent field of view of 27-75 mm on a 35 mm camera.

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