The NiSi Brass Pro Step Up Ring allows the use of a large threaded filter to be used on lenses with smaller standard filter threads. Featuring a durable brass frame with knurled sides for easier grip. The Brass Step up ring prevents binding and jamming making it easier to remove compared to standard aluminium setup rings.
The NiSi Brass Pro Step-Up Ring has a special anti-reflective felt treatment on the inside of the frame to minimise reflections and features a matte black finish. The anti-reflective felt treatment makes them the perfect companion for long exposures.