"The model DCR-1541 high definition telephoto lens is made of the high index optical glass elements with new concept of lens designing using two-group/four-element lens formulae. This new concept in designing the lens made it possible to achieve an amazing high definition telephoto lens of the 340 lines/mm resolution power at center (MTF30%), low dispersion and the increased light transmittance at fringe area. There will be no reduction of light value when this conversion lens is attached on the camera's lens. The lens has a 52mm Mounting thread. By using a suitable step ring and/or holder, the DCR-1541PRO lens can be used with the appropriate digital still camera or digital camcorder or 8mm video camcorder, effectively. DCR-1541 is also suitable to the 3-CCD chip or mega-pixel Digital Camcorders and DVCAM such as SONY VX-2000, VX-1000, PD-150, PD-100, TRV-900,/950 Canon GL-1, XM-1/2. etc. All of Raynox conversion lenses are proudly made in Japan. At Raynox's wholly owned manufacturing subsidiary, every stage of production is rigorously checked and tested so that the lens elements compensate effectively for astigmatism, distortion and spherical aberration.... for an excellent image quality.|High Definition 2 Groups/4 Elements Optical Glass|For 3x to 20x Optical Zoom Cameras|67mm Front Filter Size|High Resolution 340 Line/mm|Mounting thread: 52mm|Size 2.79" x 2.63" / 71 x 67mm|Weight: 8.5 oz. /240 g"