Sigma Fisheye 15mm f/2.8 EX DG Diagonal Fisheye for Pentax AF

Digitally optimized diagonal fisheye auto-focus lens.\n\nThis digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. By taking advantage of both the distortion aberration, specific to fisheye lenses and the minimum shooting distance of 15 cm (5.9 inches), the photographer can shoot creative images.\n\nFlare and Ghosting.\n\nThis digitally optimized diagonal fisheye lens is equipped with a new multi-layer coating technology that reduces both flare and ghosting. This also ensures an accurate color balance and high definition results.\n\nFisheye Lens Characteristic enables photographers to experience new image expression possibilities.\n\n180 degree field of view of this fisheye lens can be used to create amazing image expressions that cannot be seen with the human eye, such as exaggerated perspective and distortion.\n\nMinimum Shooting Distance of 15cm (5.9in.).\n\nThe minimum shooting distance of this lens is only 15cm(5.9 inch) and it has maximum magnification of 1:3.8. Minimum shooting distance of 15cm (5.9in.) and large depth of field allow close up photography that covers the objects surrounding the photographic subject.\n\nGelatin Filter Holder.\n\nThis lens is supplied with a gelatin filter holder at the rear, allowing the use of gelatin filters.