The model DCR-2025PRO high definition telephoto lens is made of high index optical glass elements, and it's designed with new designing concept of two-group/four-element formula to obtain the maximum resolution power of 260 lines/mm resolution power at center (MTF30%), while it has low dispersion. There will be no reduction of light value (F.Number) when this conversion lens is attached on the camera's lens. By using a suitable adapter and/or holder, the DCR-2025PRO lens can be used with the appropriate digital still camera or digital camcorder, effectively. DCR-2025PRO comes with 4-adapter rings for 43mm/ 52mm/ 55mm/ 58mm filter sizes and a LS-082 lens shade. The lens shade will cut an unwanted light beam, and it reduces flare and ghost image effect considerably. High-Resolution 260-Line/mm 2G/4E High Definition design 275g Light Weight - (9.7oz) 82mm Front filter size Specifications & Measurements Magnification: Nominal 2.2x, Actual 2.2x Diagonal, 2.2x Horizontal Lens construction: 2-group/4-element, Coated optical glass elements Front Filter thread: 82mm Mounting thread: 62mm Dimension: 123mm x 86mm Weight: 275g(9.7oz) Accessories LS-082 4-adapter ring Lens pouch Lens caps Instruction manuals