Balanced Exposure: With the use of ND filters, this lens filter helps prevent overexposure, combats scattered light, reduces shutter speed, and enhances color saturation, resulting in transparent and vibrant visuals. The numerical value after ND indicates the light reduction capability. Compatibility: Designed for Insta360 GO3 and GO2 action cameras, this ND lens filter expands the shooting possibilities and allows for clear and vivid record of breathtaking scenes. HD Optical Glass: The lens is made of premium optical glass that undergoes precise grinding, nearly eliminating color distortion. It offers high light transmission and clear imaging, delivering superior image quality. Nano Coating Technology: Featuring double sided multi layer nano coating, this lens filter provides excellent water resistance, oil resistance, anti smudge, and anti scratch properties. Portable and Easy to Install: The ultra thin aluminum frame, along with the included storage case, allows for easy transportation and storage of the filter in your pocket or backpack. It can be easily installed, ensuring a hassle free and enjoyable filming journey.