Description of Sigma 10-20mm DC (Nikon):
The 10mm - 20mm by Sigma is exclusively designed to use with Digital SLRs, the 3 SLD glass elements are employed for effective compensation of colour aberration, a common problem with super-wide angle lenses. One molded glass element and two hybrid aspherical lenses, offer excellent correction for distortion, as well as all types of aberration.
Sigma 10 20 mm is equipped with HSM technology providing quiet, high speed autofocus while offering full time manual focusing.
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