APPLICABLE MODELS: Drone filter is suitable for AVATA traversing machine, please confirm your drone model before purchase. OPTICAL GLASS: Drone lens is made of for Schott optical glass with a high definition grinding process. EASY TO INSTALL: Drone lens filter is easy to operate and can be quickly and non destructively installed and replaced filters. LENS PROTECTION: Drone camera filter has waterproof, oil proof, dirt proof and scratch proof performance, which can guard the lens very well. COATING PROCESS: Drone camera lens filter adopts multi layer nano coating process, with excellent performance in use.