Sigma Imaging UK | APO 70-200mm F2.8 EX DG OS HSM
APO Tele-Converter (Optional) The addition of the optical 1.4x EX DG APO or 2x EX DG APO Tele Converters* produce a 98-280mm F4 AF telephoto zoom lens or a 140-400mm F5.6 AF telephoto zoom lens respectively. * The Pentax mount Tele Converter is not ......