The HDP-2800ES lens is a conversion lens for capturing an ultra wide angle image in using with the high definition digital camcorder. The lens is particularly designed to be in focus through the whole zoom range of up to 5x. The lens is made of the high index optical glass in 3-group/3-element formula, and it's made in compact size and light weight. It achieved a high resolution power of 475 lines/mm at center (MTF 30%). Mounting on the wide-angle lens of f=26 mm or less (35 mm film equivalent) focal length, it will be possible to shoot the scene of 180-degree diagonal.