Cokin color graduated filters are color toned in one half of the filter and have a smoothly graduated transition into the clear portion colored and clear image portions can be brought into the desired position by adjusting the filter in the holder most cokin graduated filters are available in two densities 1 2 with 2 being darker cokin color graduated filters can also be combined with another x pro filter two color graduated filters rotated 180 degrees to each other allow a composition o