LENSES & FILTERS Filters Neutral Density Filters B+W 39mm Neutral Density ND 0.9, F-stop +3, Factor 8x, MRC nano XS-Pro (803) B+W 39mm Neutral Density ND 0.9, F-stop +3, Factor 8x, MRC nano XS-Pro (803) More photos (2) PreviousNext 7 points to the loyalty system 10 years warranty Availability Product is no longer available Manufacturer B+W Product code 794078 Description Discussion Selected parameters Filter Size 39 mm ND factor ND 8 f-stop Reduction 3 steps EV Send