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.
The 58-66mm Step-Up Ring allows the use of 66mm threaded filters on a 58mm threaded lens.