I’m just now starting a new drone business. Can anyone tell me where I can get a decent polarizer camera filter for my Phantom 4 pro + ? Thx, Joel
Welcome to the forum! 
I keep a list of commonly used P4P ND/PL filters here. Any of the brands listed there would be a good buy. If you decide to use a different brand, make sure you check out the reviews before buying.
Thank you for responding. What does the “ND/PL” stand for? I take it the “PL” stands for polarizer… Again, thank you in advance. I will post to related topic next time.
All filters are ND filters. PL means it’s also polarized.