Amazon.com description: Product Description: This second edition describes current techniques for fashioning single-element lenses, two-element achromats, air-spaced triplets and complex wide-angle and zoom lenses. More than 30 types of lens design systems are covered. New information is presented on mechanically and optically compensated zoom lenses for use in television, photography, projection and microscopy. Optical computer programs that solve numerous lens design problems are provided on an IBM-compatible disk. This package is intended for lens designers, including optical, laser, photo-optical, mechanical, infrared systems, motion picture, and television engineers; optical physicists; laser scientists; and graduate-level and continuing-education students taking courses in lens design. College or university bookstores may order five or more copies at a special student price which is available from Marcel Dekker Inc upon request.