Sigma 70-200 and 50-150 f/2.8 APO EX DG for Pentax and Sony: Digital Photography Review

Pre-PMA 2008: Sigma has announced the launch of 70-200mm and 50-150mm constant f/2.8 lenses for Pentax and Sony owners wanting lovely bright, sensibly-priced telephoto zooms. Both are part of Sigma's premium EX range and include hypersonic focusing motors and apochromatic design.
Pre-PMA 2008: Sigma has announced the launch of 70-200mm and 50-150mm constant f/2.8 lenses for Pentax and Sony owners wanting lovely bright, sensibly-priced telephoto zooms. Both are part of Sigma's premium EX range and include hypersonic focusing motors and apochromatic design.

Sigma 70-200mm F / 2.8 OS Review

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First Impressions: Sigma 50-150mm F2.8 APO EX DC OS (Canon EF) - The Phoblographer

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Sigma 50-150 mm f/2.8 APO EX DC OS HSM

Sigma 50-150mm f/2.8 EX OS Review

Is the Upgraded Sigma 50-150mm a Solid 'Do it All' Lens?

Sigma 50-150mm Focal Camera Lenses for sale

First Impressions: Sigma 50-150mm F2.8 APO EX DC OS (Canon EF) - The Phoblographer