The lee 100mm neutral density nd 09 graduated very hard filter enables users to adjust the exposure across the frame by 3 stops without affecting colour balance the 100 x 150 mm very hard nd grad 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 lee 100mm filter holder ie foundation kit