ProMaster Step Up Ring - 49 - 52mm

PROMASTER Stepping Rings are the perfect addition to your collection of photographic gear. Use them with special effects filters and add on lenses to convert a lens with one thread diameter to a filter or conversion lens with another. PROMASTER Stepping Rings are precision milled and designed to give you years of reliable service. Allows you to use a 52mm filter on a 49mm lens