The Neutral Density 4X-10 Filter is widely used in photography as it offers quality results with desired effects.It reduces the light by two f-stops and allows to choose the required selective sharpness effectWith excellent color neutrality, this ND 4X-10 Glass Filter comes with 4x filter factorWith moving subjects, this B+W filter series 8 filter can create blur effects by reducing the shutter speed by two or three steps and without opening the aperture