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.
Pentax K-mount - Wikipedia
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