Marumi DHG Super ND64 (1.8) The Marumi DHG Super ND64(1.8) is a flagship model Neutral Density especially well-suited to whom a superb maintenance ability has taken precedence. Certified German Quality Glass, B270i with high scratch resistance performance 64x-Filter factor, 6-stops, 1.8-Optical density, ascertained color fidelity by ND coating (Specification values)..