FeaturesSlip-on molded holder for 3 inch gelatin and polyester filters. Indispensable for accurate color correction. Allows insertion of multiple gelatine or polyester filters. Also accepts 3" plastic filters. Especially useful with 50 and 65mm lenses where threaded filters may cause vignetting.CompatibilityMamiya Cameras:RB67 RZ67 Mamiya Lenses:50mm 65mm 75mm 90mm 110mm 127mm 140mm 150mm 180mm 250mm 350mm 360mm