The Heliopan 72-82mm Step-Up Ring is a reliable and economical way to use filters. For example, a 49-52mm Step-Up ring would allow you to use 52mm filters on lenses with a 49mm front filter thread size.
Note! Heliopan also produces Step-Down Rings, which allow smaller sized filters to be used on lenses with larger front filter thread sizes. For example, a 52-49mm Step-Down Ring would allow a 49mm filter to be used on a lens with a front filter thread size of 52mm. Care must be taken using Step-Down rings in order to avoid vignetting.
72-82mm Step-up Ring #131
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