The NiSi Brass Pro 40.5-46mm Step Up Ring allows the use of 46mm threaded filters on lenses with 40.5mm 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 make them the perfect companion for long exposures.

• Use 46mm Filters on a lens with a 40.5mm standard filter thread
• Durable Brass Alloy Frame
• Prevents jamming and binding
• Knurled sides for easier grip
• Anti-reflective treatment on the inside of the frame to minimise reflections
• Matte Black Finish