Sigma 10-20mm and 70-200mm for Four Thirds Thursday, 31 January 2008 00:00 GMT Pre-PMA 2008: Four Thirds users far and wide will appreciate the wide angle and telephoto zooms today announced by Sigma. The company's popular 10-20mm F4-5.6 and 70-200 F2.8 lenses have been converted to fit…
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