Heliopan adapter ring 67/ES58

Extension rings, also known as extension tubes and step rings are used to fit different size lenses to your filters. Extension rings from the manufacturer Heliopan based in Gräfelfing, near Munich are generally made of brass in a matte black design. As a result of the variety of lenses with different thread diameters available these days, step-down rings have become an essential accessory. Heliopan manufactures all the components of its products exclusively in Germany.