The PRO1D ND filter series features the PRO1D ND coating, which emphasizes flat transmission characteristics. This series employs the PRO1D ND coating, which prioritizes flat transmission characteristics. It's a slim-frame type compatible with a wide range of lenses, from wide-angle to telephoto. These filters are extremely neutral, offering excellent color reproduction with a neutral gray tint. They are used when you want to adjust the light intensity without affecting the colors. The outer edge is ink-coated to reduce internal reflections, preventing flares and ghosting caused by the filter. The filter frame features knurling (non-slip) for easy attachment and removal. ND8 reduces the light intensity to 1/8, equivalent to a 3-stop reduction. This is useful when you want to express the flow of water in a slower manner. - Brand: Kenko - Model Name: PRO1 D PROTECTOR(W) - Filter Diameter: 77mm - Type: Digital Filter Thank you for viewing.