Made of high quality optical magnifier, it can reduce the near-light range of the lens. The close-up lens group is used to shoot flowers, small collections, coins and stamps, insects, small animals or small objects that require close-up details. 2 different type for you to choose, meet your different needs. Filters have 4 different strengths, included + 1, + 2, + 4, + 10. Suitable for DSLR camera, great for photography.