For Insta360 GO Ultra Sunnylife Camera Lens Filter 1. Multi-layer coating filter, high transmittance and high light to restore true color 2. Professional optical glass lens provides clearer image quality 3. Protects your lens from dust and scratches without affecting photo quality 4. Material: Aluminum alloy + optical glass 5. Weight: 3g Filter Features: UV Filter: Suitable for seaside, mountain, snowfield, and open area shooting; reduces blue tone caused by ultraviolet rays and helps improve sharpness and color reproduction CPL Filter: Enhances color saturation for vivid scenic images and reduces glare and reflections ND Filter: Allows greater control over aperture and shutter speed, providing more exposure options and creative flexibility while preventing overexposure; ND numbers indicate light reduction capability Black Mist 14 Filter: Softens harsh shadows, reduces unwanted reflections and lens flare, and promotes even light distribution for natural-looking results Available Filter Combinations (varies by model): 3 in 1 Light Shadow: CPL, ND16, Black Mist 14 3 in 1 Mixed Filter: CPL, ND8, ND16 4 in 1 Mixed Filter: MCUV, CPL, ND32, ND64 4 in 1 ND Filter: ND8, ND16, ND32, ND64 4 in 1 NDPL Filter: ND8PL, ND16PL, ND32PL, ND64PL 6 in 1 Mixed Filter: CPL, ND8, ND16, ND32, ND64, Black Mist 14