NiSi Brass Pro 40.5-46mm Step Up Ring Recording Monitor 45mm mounting slot

45mm mounting slot

3 Filter (1 Stop) is a lens filters by NiSi

72mm actual thread size: Front filter thread is intentionally larger than 67mm to avoid vignetting on wider lenses

avoiding stacked glass

NiSi Brass Pro 40.5-46mm Step Up Ring Recording Monitor 45mm mounting slotThe 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