1The lens is made of high quality optical glass through high definition grinding treatment. 2Using double sided multilayer nanometer coating technology, the lens has waterproof, oilproof, anti fouling and anti scratch performance. 3The surface of the lens forms a protective layer, which is easier to clean and maintain, and has a longer service life. 4ND filter can reduce the exposure of the camera, extend the exposure time, and make the water or white clouds appear soft and cottony. The number after the ND represents the light reduction ability. 5CPL filter is a commonly used filter, which can eliminate most of the reflection of non metallic and non spherical surfaces, and is generally used for landscape photography. When shooting, the sky is bluer and the water is more transparent. Item Type: Drone Camera Lens Filter Set Model: CPL/ND8/ND16 Filter Material: Optical Glass Product Color: As Pictures Shown Product Weight: Approx. 40g / 1.4oz Applicable Models: For FIMI X8 MIN Drone Camera Lens 3 x Filter 1 xStorage Box