Raynox HDP-2800 ES - High-resolution fisheye attachment converter 0.28x. The HDP-2800ES is an attachment converter that allows for extreme wide-angle shots when used with a high-resolution digital camcorder. The converter is designed to maintain correct focus across a zoom range from the widest angle setting to approximately five times the focal length. Its optical system consists of three standalone lenses made from high refractive index optical glass, characterized by exceptional compactness and lightweight design. It achieves a high resolution of 475 line pairs per millimeter (at the center of the image with an MTF contrast of 30%). When used in front of a wide-angle lens with a full-frame equivalent focal length of 26 mm or less, this converter achieves a diagonal field of view of 180°. The package includes two adapter rings with thread sizes of 37 mm and 43 mm, allowing the converter to be screwed onto camcorder lenses with these filter thread sizes. True HD quality from corner to corner. A fisheye effect is achieved with a barrel distortion of 64%. HD design made from 3 standalone lenses. Compact and weighing only 205 g.