Zykkor 67mm Neutral Density Filter Kit ND2 ND4 ND8 HD Optical Glass Filter High Quality Optical Glass Neutral Density Filter Increases control of depth of field Eliminates overly bright, washed-out images. Balances exposures Equally effective in color or black and white photography ND Filter Kit Includes ND2 ND4 ND8 & Zykkor Lens Cleaning Cloth in Folding Filter Pouch