This lens enables a unique 180-degree picture angle, close focusing down to 14cm and the kind of incredible depth of field properties characteristic of fisheye lenses. The first Fisheye lens developed exclusively for use with Nikon DX Format (not compatible with 35mm film SLR cameras) First lens designed for Nikon DX Format that achieves 180 degree picture angle. Ultra-wideangle focal length of 10.5mm - diagonal fish-eye lens, makes extreme close-ups possible