Sigma 50-500mm F4-6.3 APO EX RF HSM | $789.95 | |  |
Sigma is proud to introduce a new addition to our EX series of lenses, the 50-500mm f/4-6.3 APO EX Hyperzoom. This magnificent new superzoom encompasses all popular focal lengths from the 50mm "normal" to 500mm ultra-telephoto; a 10:1 zoom ratio, providin
g tremendous versatility. The use of an apochromatic design and four elements composed of SLD (Special Low Dispersion) glass, plus a seven group zoom system and multi-coated optics, enable this wide-ranging zoom lens to provide a high level of performance
, as well as versatility. It also employs a rear focus system to insure quick, convenient manual focus and a non-rotating front barrel. This, coupled with Sigma's HSM (Hyper Sonic Motor), provide quiet, responsive autofocus function, plus "full time" manu
al focus. This lens also features a Zoom Lock mechanism to help eliminate "zoom creep" when the lens is tilted up or down. The use of magnesium in the tripod mount helps reduce the weight of this lens, while maintaining the strength and rigidity necessary
to support it. Nature and sports photographers will appreciate the performance and versatility of this amazing new superzoom lens from Sigma.
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