Effortless Filter Conversion with Step-Up Adapter Rings Achieve perfect compatibility between lenses and filters using our precision 26mm to 30mm step-up ring adapter. Crafted from anodized aluminum, this lightweight ring enables secure attachment of 30mm threaded accessories (such as UV filters, CPL filters, star filters, close-up lenses, lens hoods, etc.) to 26mm threaded lenses. Ideal for photographers seeking flexible filter solutions without buying multiple sizes.