K&F Concept B-Series Variable ND2-400 Filter

The B-Series ND2-ND400 Variable ND Filter from K&F Concept provides an adjustable light reduction of 1 to 9 stops and reduces the amount of light entering the lens. This makes it easier to achieve effects such as a shallower depth of field or blurred motion. Create spectacular images of the ocean washing over rocks, waterfalls, rivers, or surfers flying across the waves.