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Sigma Corporation’s new APO 50-500mm F4.5-6.3 DG OS HSM now on shelves

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Sigma Corporation extends scholarship voting deadline until April 30

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Sigma Corporation announces five new lenses, three new cameras at PMA 2010

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Windows7 Compatibility Announcement

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Four professional photographers featured in Sigma Corporation’s Online Gallery

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Sigma Corporation adds unique, anti-shake technology to award-winning 17-70mm lens

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Sigma announces the first ever scholarship contest.

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PRESS RELEASE: Sigma Corporation now accepting applications for student photography scholarship.

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Sigma Announces the newest addition to the DP family.

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Step up to Sigma’s Optical Stabilization System

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