The Sigma 15mm f2.8 EX DG Diagonal Fisheye Lens for Nikon Digital SLR Cameras is a digitally optimized diagonal fisheye auto-focus lens. It is equippe

The Sigma 15mm f2.8 EX DG Diagonal Fisheye Lens for Nikon Digital SLR Cameras is a digitally optimized diagonal fisheye auto-focus lens. It is equipped with the latest in multi-layer coating technology that reduces both flare and ghosting. By taking advantage of both the distortion specific to fisheye lenses and the minimum shooting distance of 5.9 inches, the photographer can shoot error-free creative images.