The Sensei PRO 40.5-52mm Aluminium Step-Up Ring permits the use of 52mm threaded filters on lenses with 40.5mm 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, aluminium-alloy construction that has a corrosion-resistant, matte black, hard anodised finish for durability and to minimise reflections.
Specifications
| Size | 40.5-52 mm |
| Thickness | 4.05 mm |
| Material | Aluminium alloy |
| Knurling | Side |
