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For sale : SIGMA 15mm f2.8 EX DG FISHEYE (Nikon) and SEACAM for Sigma 15mm Fisheye port - Classifieds - Wetpixel :: Underwater Photography Forums
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Amazon.com : Sigma 15mm f/2.8 EX DG Diagonal Fisheye Lens for Nikon SLR Cameras : Camera Lenses : Electronics
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Comparing sharpness underwater of the Sigma 15mm and Tokina 10-17mm fisheye lens on a ful-frame Nikon D800 camera - Underwater Photography Guide
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Amazon.com : Sigma 15mm f/2.8 EX DG Diagonal Fisheye Lens for Minolta and Sony SLR Cameras : Camera Lenses : Electronics
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