The 67mm NanoPro Black Mist 1/8 Variable ND Filter from Haida offers 1.5 to 5 stops of light reduction while also featuring a 1/8 layer of black mist coating. The filter combines a variable ND filter with a black mist filter that reduces highlights and lowers overall contrast. It’s made with K9 optical glass and has an aluminum filter ring. The glass is nano coated, waterproof, and scratch resistant.