PolarPro DJI Phantom 3 Filter 3-Pack P5001 B&H Photo Video
Lens Filter for DJI Phantom 4 Pro V2.0 Advanced Drone UV CPL ND4 ND8 ND16 HD Filter Camera Lens Parts Neutral Density Polarizing|filter camera|filter for lensfilter nd8 - AliExpress
Amazon.com : DJI Phantom 4 Neutral Density ND8 Filter(for Phantom 4 only ! Doesn't fit Phantom 4 Pro/Adv) : Electronics
ND and Polarizing Filter Adapter for DJI Phantom 4 Pro – DitzCo