DJI Advanced Lens Drone Phantom Pro For ND4 4 or 3 Filter Camera (ND2 ND8) 3pcs Features:- Excellent quality, Dedicated to digital cameras.- Change light conditions to creat an ideal atmospheric environment with vivid colors,sharp color contrast and stereoscopic images.- Balance lights to adapt the film conditions, rendering colors natural and turning invisible lights to be visible and clear.- To allow picture and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes that can cause overexposure.- Fit For DJI Phantom 3 Professional or Advanced and Phantom 4 Camera. (Phantom 3 Standard Unfit,phantom 4 advance or professional unfit).- Each filter come with a case(Built-in precision sponge, effectly protecting the lens against scratches) to keep your filters safe and ready to use.The higher the ND mirror value, the lower the transmittance.ND2 light transmission rate of 1 or 2, equivalent to about 1 shutter speed effect.ND4 light transmission rate of 1 or 4, equivalent to about 2 shutter speed effect.ND8 light transmission rate of 1 or 8, equivalent to about 3 shutter speed effect.Specifications:Model: ND2andND4andND8 filterMaterial: Plexiglass and Metal RingColor:Black FrameDiameter: 35mm or 1.38"Case Size:60x70x12mm or 2.36x2.76x0.47 inchPackaged included:1 x ND2 filter1 x ND4 filter1 x ND8 filter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.