Sensei PRO 49mm Lens to 77mm Filter Aluminum Step-Up Ring

The Sensei PRO 49-77mm Aluminum Step-Up Ring permits the use of 77mm threaded filters on lenses with 49mm 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: 49-77 mmThickness: 4.05 mmMaterial: Aluminum alloyKnurling: Side