Product selling points: 1. Nano coating · High-definition light transmission Multi-layer nano coating technology restores natural light, and the aerial pictures are without color cast 2. Optical glass · High-definition imaging High-transmittance optical glass, precision grinding process, 98.5% light transmittance, no loss of details 3. Aviation aluminum frame · Dependable light aviation aluminum, laser engraving, anti-oxidation and moisture-proof, long-lasting 4. Adjustable CPL · Light control Rotate the gear to adjust the CPL filter, flexibly deal with complex scenes of backlight and reflection 5. Varnishand easy to clean · Long-lasting like new Water drops into beads, easy to clean, dust-proof and scratch-resistant, effectively prevent lenses and drone lenses from scratching 6. Quick release design · Change filters in seconds One twist and one pull for quick disassembly and assembly, the buckle is and does not fall off, and the creation is uninterrupted 7. Original compatibility · Seamless fit Adapt to the original lens cover, perfect fit after installation, protection without dead angles 8. Lightweight 6g · No sense of flight Single filter is only 6g, no burden flying, no impact on gimbal calibration 9. UV protection · Image quality upgrade UV filter weakens ultraviolet blue tone, improves light transmittance, and protects the lens from scratches 10. CPL anti-glare · Color enhancement Polarized filter eliminates glass/water reflection, enhances the saturation of blue sky and white clouds, and makes the picture more 11. ND light reduction · Professional exposure control "Multi-speed ND filter reduces the amount of light entering, avoids overexposure, and improves the dynamic blur effect of the video. Other parameters: Main material: aluminum alloy + optical glass Attribute: black Net weight: about 6g (ND) / 7g (CPL) Gross weight: single product: 30g (ND) / 31.2g (CPL) / Set: 132.7g (3-piece set) / 140.7g (4-piece set) Product size: 6*4.9*0.4cm (ND)/6*4.9*0.5cm (CPL) Packaging size: 7.3*6.5*1.6cm (single product)/14.8*12*1.5cm (3/4-piece set) Packing method: boxed