4 Piece HD Digital Macro Close-Up Lenses +1, +2, +4, +10 Diopter Filters Digital Multi Coated High Quality HD Optics Includes Protective Filter Lens Wallet For all Digital Cameras & Video Cameras They allow the camera lens to be set closer to the subject to achieve a larger image scale. These lenses can be used individually or stacked in any combination to achieve the desired magnification. High Definition Optics Digital Multi-Coated +1, +2, +4, +10 Diopter Filters Limited Lifetime Warranty