B + W 72mm XS-Pro Vario Neutral Density MRC Nano Filter - 0.3 to 1.5 (1 to 5 stops) Multi-Coated: Yes B+W 72mm XS-Pro Vario Neutral Density MRC Nano Filter - Plastic Case - B+W 10 Year Limited Warranty Filter Factor: 0.3 to 1.5 (1 to 5 stops) Filter Size: 72mm Filter Type: Variable neutral density