Sigma APO 70-200mm F2.8 EX DG Macro HSM
by dpreview
PMA 2006: Sigma has introduced its new APO 70-200mm F2.8 EX DG Macro HSM lens. The lens offers a minimum focusing distance of 100cm and HSM (Hyper Sonic Motor) for fast, quiet AF. It also contains two ELD (Extraordinary Low Dispersion) glasses and two SLD (Special Low Dispersion) glasses for better correction against chromatic aberrations. The multi layer lens coating also reduces flare and ghost.
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