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This ultra telephoto zoom lens covers a range of focal lengths from 50mm to
500mm ultra telephoto. This lens is equipped with Sigma’s unique OS (Optical
Stabiliser) function. This system enables hand held photography for many
types of subjects such as motor sports, aeroplanes, close-up and wildlife.
Four SLD (Special Low Dispersion) glass elements provide excellent
correction of colour aberration throughout the entire zoom range.
Incorporation of HSM (Hyper Sonic Motor) ensures quiet and high speed AF,
while allowing full-time manual focus override. The addition of the optional
APO TELE CONVERTER produces a 1000mm ultra telephoto zoom lens.