Haida Slim PROII Multi-Coating Split Gradual Graduated Neutral Density ND0.9 ND8 to 0 Filter 77mm High Quality ProII Slim Glass Split Gradual Graduated Neutral Density Filter ND 0.9 ND8 to 0 Haida Neutral Density filters are constructed from high quality optical glass for increased optical clarity and color fidelity Split ND Filter Reduce Exposure in selective area of the frame ie: Horizons Equally effective in color or black and white photography and does not affect the overall coloration of the image. Circular Rotating Design for more Exposure control. Includes Filter Case