I received mine today. But all three filters can't be attached because the bad threads. The original UV-filter (DJI) is (un)mountable without any issues. So the problem is the threads of the Polar filters. Request my money back, but got no answer. Now asking my money back through Paypal.
BTW: I used lube, but that doesn't help.
BTW: I used lube, but that doesn't help.
