Complete Filter Set for DJI P4 P3A P3P DJI Phantom 4 Phantom 3 Advanced Professional Quadcopter 4K UHD Video Camera Drone Kit Includes: Polarizer, Neutral Density ND4 ND8 ND16 ND32 ND64 Filters THE ND FILTERS: Reduce light hitting the sensor, which slows down the camera's shutter speed. THE ND FILTERS: ND64: This ND cuts light by 6-stops - ND32 cuts light by 5-stops - ND16 cuts light by 4-stops - ND8 cuts light by 3-stops - ND8 cuts light by 2-stops NEUTRAL DENSITY FILTERS: Creates a more natural-looking motion blur that smoothes out footage POLARIZING FILTER: Helps to reduce glare and improve color saturation. THE POLARIZER: Reduces the amount of glare bouncing off the ground.