DSTE DT05J05S52-Gray -- 52mm Gray Color Gradual Graduated Filter for SLR Cameras Lens - ND (Neutral Density) 52mm diameter Also for use in black-and-white imaging Half color, half clear with a graduated density transition for a smooth blending of color Effective when mixed lighting will produce a partially under or over exposured scene. This filter is mounted on a rotating frame, so you will be able to rotate the coloring at any part of your image.