The Tiffen Close-Up Lens Set is a set of three close-up lenses for use in achieving macro-like results with almost any lens you pair them with. Close-up lenses are essentially diopters that you place over your lens in order to lessen the minimum focus distance by the amount specified on the filter. You can combine the filters together to increase their strength and to fine tune your close-up settings.

Dual threading permits you to combine the filters together or pair with other types of filters.