Snake River Prototyping P3 Series ND8/CP Filter for The DJI Phantom 3 For Use with DJI Phantom 3 Camera The P3 Series ND8/CP Filter combines a lightweight slip-over filter frame for the DJI Phantom 3 camera with a professional grade two-in-one filter. The ND8/CP is a combination circular polarizer and neutral density 8 filter. A CP filter is used to reduce glare on the surface of water or windows, manage reflections, and increase the contrast between clouds and sky. A neutral density filter is used to reduce the effects of rolling shutter including the jello effect and prop blur. Filter weight is only 7.5 g!