This new Contemporary lens is designed for cameras with an APS-c sensor and covers a range equivalent to 25.5 to 105mm on a 35mm camera. An upgrade to its predecessor, which was released in December 2009, this general purpose lens offers a new design and a more compact build.

First Look at the new Sigma 17-70mm F2.8-4.0 DC Macro HSM 'Contemporary series' lens at the Sigma blog.

The new Sigma 17-70mm F2.8-4.0 DC Macro Contemporary Lens review

Sigma's spectacular first entry in the 'Art series' family of lenses was the fabulous 35mm f/1.4 DG HSM, a lens that took the photographic community by storm. Having now set the bar very high, can the company repeat the success with the (soon to be released) comparatively cheaper and lower spec'd​ 17-70mm F2.8-4.0 DC Macro HSM​? Jack Howard​ writes:

"On APS-C cameras, the lens translates to about a 26-112mm zoom, which is a great everyday range for wide angle shots without significant perspective distortion, to short telephoto for flattering portraits. For the exact focal length equivalence, multiply your camera’s sensor format (1.5 to 1.7) times the focal lengths. . . . read more

Sigma announces trio of new lenses, new naming scheme, and a promise of improved quality control.

Maybe some other makers of expen$ive lenses *cough* CaNikon *cough* should also look into the 'quality control measures' thingie.

Sigma Press Release

Sigma Corporation announces reorganization of lens lineup, new products and quality control measures . . . read more

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