The Hoya 72mm Multicoated Close-up Lens Set is a set of three close-up lenses for use in achieving macro-like results with almost any camera lens you pair them with. Close-up lenses are magnifiers that optically decrease the focal length of a camera lens it is placed on. This effect lessens the minimum focus distance between your camera lens and an object. Magnification can then be obtained while photographing an object by moving the front of the camera lens close to it.
The magnifying power of each close-up lens is indicated by its diopter strength. A close-up lens with a higher diopter number provides more relative magnification and can be combined with other close-up lenses to increase or fine-tune its effect. These lenses are multicoated to help reduce flare and improve light transmission.