Compatibility - Specifically designed for Insta360 Ace Pro 2 and Ace Pro cameras. Protects the lens and helps deliver clear images during drone photography. Ideal for drone enthusiasts who love aerial footage. Filter construction and coatings - Double-sided, multi-layer optical HD glass. Made from high-quality optical glass with multiple functional coatings on both sides. The coatings provide water-repellency, scratch resistance, and oil resistance, while reducing reflections from both the filter surface and the ground. Optical performance - Light control and color fidelity. The ND filter reduces light intake and lengthens exposure time. The CPL polarizer restores true, natural color. It blocks the relevant light value for the camera during dynamic outdoor activities to help adjust camera parameters for a cinematic look. Easy installation - Ultra-fast clip-on design. Simply clip onto the lens; no need to remove the camera’s protective lens. Attach directly to the camera lens for quick setup. Durability and protection - Robust with embedded damping silicone. Features an embedded one-piece damping silicone ring that stays securely in place, providing a stable, solid filter. During removal and installation, the filter also protects the camera lens from scratches.