For Insta360 GO Ultra Sunnylife Camera Lens Filter 1. Multi-layer coating filter, high transmittance and high light to restore true color 2. Made with professional optical glass lens for clearer images 3. Protects your lens from dust and scratches without compromising photo quality 4. Material: Aluminum alloy + optical glass 5. Weight: 3g Filter Features: 1. UV Filter: Ideal for use in seaside, mountain, snowfield, and open areas. Reduces blue tones caused by ultraviolet rays. Helps minimize UV interference with the cameras CCD, improving sharpness and color reproduction. 2. CPL Filter: Enhances color saturation for vivid, scenic images. Reduces glare and reflections from non-metallic surfaces such as water and glass. Helps control light entering the lens. 3. ND Filter: Allows greater control over aperture and shutter speed, enabling creative exposure options and preventing overexposure. The number following ND indicates the light reduction capability. 4. Black Mist 1/4 Filter: Softens harsh shadows, reduces unwanted reflections and lens flare, and promotes even light distribution for natural-looking images. Note: Available multi-filter combinations may include: - 3 in 1 Light Shadow: CPL, ND16, Black Mist 1/4 - 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 1/4 Filter styles vary by model. Choose based on desired photographic effect.