Hobby Signal MCUV Lens Filter Glass Filter UV Filter for Phantom 4 Phantom 3 MCUV Filter for Phantom 3 Professional & Advanced & Standard & Phantom 4. Note: the filter fits Phantom 3/4 cameras, and the initial installation would be a little bit tight for Phantom 3 camera. Antiskid Knurling Technology: Added knurled antiskid design and hard anodized, gorgeous with wear resistance More Stable Lens: Added a threaded ring in front of the lens to make it more stable, unlike the old version. Updated Lens: Upgraded lens, provided by brand manufacturers which is specialized in professional photography equipments, is high quality with excellent effects. Updated Packaging: Updated gorgeous acrylic package, practical with elegant appearance.