With redesigned mechanics and performance, this Sports lens is an update from its predecessor released in February 2011. This high-performance lens eases difficult shooting conditions by offering a maximum focal length of 300mm and a wide-open aperture of F2.8. This lens, like the other Sports category lenses to come, is dust and moisture resistant, and allows users to adjust the focus speed and the focus limiter via a button on the lens.

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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