The Hoya HMC Close-up Set II consists of 3 filters that can turn most lenses into a macro style lens. The +1, +2, and +4 filters allow you to move the camera closer to the subject to achieve that magnification or close-up look associated with dedicated macro lenses. They attach to the front of the lens using the filter threads which makes them compatible with any lens that accepts front mount filters. The Close-Up set II uses a new single element optical design for improved sharpness and less distortion over the previous version. They also employ a reformulated triple-layer multi-coating to minimize reflections on the filter surface. This reduces the chance for flare and ghosting that can hurt image quality. With a transmission rate over 97.5% the filters maintain sharp contrast and well balanced color. Each filter has dual filter threading so they can be stacked on top of each other to get even closer to your subject. The set includes 3 filters and a padded wallet for safe transport and storage.