The Novoflex 58-52mm Step-Down Ring is a reliable and economical way to use your Novoflex Ring Flash on various lenses. For example, a 55-52mm Step-Down ring would allow you to use a filter with a 52mm filter mount on lenses with a 55mm front filter thread size.
Using this system with a lens with a filter size larger than 62mm will result in vignetting. Care must be taken using Step-Down rings
Allows user to use the ring flash on many different lenses
Small, efficient way to save space and money at the same time