Kodak 5-1/2" Round Safelight Filter #OC, Light Amber Filter Safe for Most Contact & Enlarging Papers. Go to amazon.com Related posts 6 best safelight filter FeatureKODAK 5-1/2" Round Safelight Filter #OC, Light Amber Filter Safe for Most Contact & Enlarging Papers. DescriptionKODAK 5-1/2" Round Safelight Filter #OC, Light Amber Filter Safe for Most Contact & Enlarging Papers.