The Raynox HD-7049 PRO is a wide-angle conversion lens with very high resolution. The three individual lenses are made of optical glass, achieving an impressive resolution of 540 lines/mm at the center. This conversion lens can be used throughout the entire zoom range of the main lens. When used, the light intensity of the camcorder lens is maintained, with no light loss occurring. Features: - Mounting thread: 49 mm - 82 mm front thread for filters - Usable throughout the entire zoom range of the lens - High resolution of 540 lines/mm - Construction with 3 individual lenses - Clear, razor-sharp images at any zoom position - Magnification factor: Nominal 0.7x; actual diagonal 0.7x, horizontal 0.7x.