Sorry for making on other one of these threads again, just I can't seem to get it off! I try gentle, then with force.., nothing! Also... this? Amazon.com: YKS Adjustable Polariser ND 2-400 Neutral Density Fader Filter Lens for DJI Phantom 3 Advanced & Professional: Toys & Games do I twist it to make it darker or what... I'm so confused lol Thanks for the help!