Raynox HDP-2800 ES High Definition Diagonal Fisheye Lens with 0.28x conversion. The HDP-2800ES lens is a Fisheye lens for capturing ultra-wide-angle images with high-definition digital camcorders and cameras. It is designed to support 5x zoom, allowing it to focus from the widest angle of the lens up to the 5x zoom range. It is made from high-index eco-glass optical elements in a 3-group/3-element formula and has a compact size with lightweight. It achieves an impressive high resolution of 475 lines/mm at the center (MTF30%). By mounting it on a wide-end lens f=26mm or less (35mm film equivalent), it is possible to capture scenes at a 180-degree diagonal. It comes with two adapter rings F52-M37mm and F52-M43mm for use with lenses of the same filter size. It provides high-definition quality images from edge to edge and creates an image with -64% distortion, achieving the Fisheye effect. The high-definition 3-group/3-element design weighs 205g and has a compact size.