An 82mm ND8 filter reduces light and allows for smooth water effects. Purchased in 2018, but rarely used. There are no noticeable scratches on the filter surface. Includes case: Almost no scratches or dirt Body: No scratches. Dust removed as much as possible with a blower. The following is quoted from the official website: Features PRO1D ND coating, which emphasizes flat transmission characteristics. The PRO1D ND filter series employs the PRO1D ND coating, which emphasizes flat transmission characteristics. This is a thin-frame type that supports wide-angle to telephoto lenses. It is a neutral gray filter with extremely high neutrality and excellent color reproduction. It is used when you want to adjust only the amount of light without affecting the colors. The outer circumference is coated with black ink to reduce internal reflections, preventing flares and ghosts caused by the filter. It features a knurled (non-slip) filter frame for ease of attachment and removal. ND8 reduces the amount of light to 1/8, which is equivalent to a 3-stop reduction in light. It is useful when you want to express the flow of water in a slower manner.