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Sigma 8mm f/3.5 EX DG Circular Fisheye Lens for Sigma SLR Cameras

Product Description :
Digitally-optimized circular fisheye auto-focus lens
Produces circular images with an angle of view of 180-degrees when attached to a full-frame digital or 35mm film SLR camera
Maximum aperture of F35 a minimum focusing distance of 55 inches and a maximum magnification of 46x
Super multi-layer lens coating reduces flare and ghosting
Gelatin filter holder at the rear allowing the use of gelatin filters