use 49mm filters on a 40.5mm lens

the nisi brass pro 40.5-49mm step up ring lets you mount 49mm filters onto any lens with a 40.5mm filter thread – a simple way to standardise your filter kit across multiple lenses without buying duplicates in every size. it’s a small accessory that makes a big difference to how efficiently you work in the field.

brass alloy. built to last.

unlike standard aluminium step-up rings, the nisi brass pro is machined from durable brass alloy, which is far less prone to jamming or binding on lens threads – even after years of regular use. knurled sides give you a confident grip for easy attachment and removal, while an anti-reflective treatment on the inside of the frame minimises internal reflections that could affect image quality. a matte black finish keeps things clean and professional.

• adapts 40.5mm lens thread to accept 49mm filters
• durable brass alloy construction – resists jamming and binding
• knurled sides for secure, easy grip
• anti-reflective inner coating to minimise reflections
• matte black finish