The Brass Pro 40.5-46mm Step-Up Ring from NiSi allows 46mm threaded filters to be used on lenses with 40.5mm standard filter threads. It features a durable brass frame with knurled sides for easier grip. The Brass Pro step-up ring prevents binding and jamming, making it easier to remove compared to standard aluminum setup rings.
The Brass Pro ring has a matte black finish and a special anti-reflective felt treatment on the inside of the frame. The felt treatment minimizes reflections and makes the filter well-suited to shooting long exposures.
