Sigma 8mm f/3.5 EX DG Circular Fisheye Lens for Nikon SLR CamerasFREE FEDEX DELIVERY
Limited Time Offer! Free Full Size Tripod, Lens Cleaning Pen, Lens Cap Keeper, and 3 Piece Cleaning Kit with Purchase!
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Get a Free 32gb Lexar 1000x Class 10 U3 High Speed Memory Card
This lens can be used for the scientific applications such as the solid angle measurements of cloud distribution over the sky, the vegetation distribution of the rain forest canopy, etc., due to the quantifiable angle/area relationship it produces.
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