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The Sigma 10-20mm F3.5 EX DC HSM Lens is a ultra wide angle lens and exceptional image quality. It is great for shooting sharks, whales, reefs and seascapes. The maximum aperture of F3.5 provides enough light to create stunning photos and videos. It has a very wide angle of view of 102 degrees. Its lens is coated with Super Multi-Layer which prevents flares and ghosting. As for its auto focus, it is quiet and fast. 3 specials low dispersion glasses are also used by this lens.
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