Neewer for DJI Phantom 4, DJI Phantom 3 Professional and Advanced, Multi-Coated PL-ND Filter Set: PL-ND4, PL-ND8, PL-ND16, PL-ND32, Made of High Definition Glass, Not for DJI Phantom 3 Standard - Walmart.com
NEEWER 3 PCs Neutral Density Filter Kit for DJI Mavic - NEEWER – neewer.com
Why ND's?: DJI Phantom 3 Professional with PolarPro ND8 & ND16 - YouTube
Amazon.com: LENSKINS 3-Pack Drone MRC ND4/ ND8/ ND16 Filter for DJI Phantom 4/3 Professional/ 3 Advanced, AGC Optics, Aluminum Frame, Ultra Slim Neutral Density Filter Set with Storage Case & Lens Cloth :
DJI Phantom 3 Camera Drone Part 56 ND16 Lens Filter Fits Professional / Advanced 6958265119521 | eBay
6 Things You Need to Know for Long Exposure by Filter