The lee sw150 neutral density nd 045 graduated very hard filter enables users to adjust the exposure across the frame by 15 stops without affecting colour balance the very hard nd grad measures 150 x 170mm and is perfect for scenes such as seascapes that feature a defined horizon line the transition between the coated and clear sections of the filter is extremely sharp allowing for precision separation between the filtered and unfiltered areas of the frame the lee sw150 filter holder an