The Sensei PRO 30.5-46mm Aluminum Step-Up Ring permits the use of 46mm threaded filters on lenses with 30.5mm filter threads. It has large side knurls to provide a more textured grip when mounting or removing it from a lens. This step-up ring features a lightweight, aluminum-alloy construction that has a corrosion-resistant, matte black, hard anodized finish for durability and to minimize reflections.

Size: 30.5-46 mm

Thickness: 4.05 mm

Material: Aluminum alloy

Knurling: Side