Nikon 10.5mm f/2.8G ED-IF DX Autofocus Fisheye Lens for Digital SLR Cameras - Refurbished by Nikon U.S.A. The first fisheye lens developed exclusively for use with Nikon DX Format Ultra wide picture angle of 180 on DX sensor achieved by producing a smaller image circle (the size of the image that is projected by the lens on to the sensor) enabling smaller lens diameter, lighter weight and optimal image quality from center-to edge-to-corner on the image. Equivalent to 16mm focal length on 35mm Minimum focus distance of 0.14m (5.5 in.), or 0.03m (1.2 in.) from the lens front, makes extreme close-ups possible Close-Range Correction (CRC) provides high performance for sharper images when taking pictures up close