ND filter,In strong light environment, it prevents overexposure, blocks ultraviolet rays, protects lenses and sensors, prevents dust and water drops, increases color saturation, and improves image clarity. For FLIP filter set, multi-layer coating, waterproof, scratch-proof, dust-proof, oil-proof, to protect the for FLIP lens from all-round damage. Meet the demand for ND scrim, CPL polariser and UV lens, you can choose from a variety of filter effects when . Made of high-definition optical glass, no impact on image quality, after many grinding and polishing to form a low refractive index, to that the image of the true colour. design, and the two sides of the design of the handhold position, only need to align the lens, can be more secure and fast installation, can be tightly fixed on the drone during the flight. It can prevent light leakage or ghosting, and the weight of each filter is only 0.4 grams. Model Number:For FLIP Filter Type:ND Filter Product net weight:Single 0.4g Product size:19.7x14.3x4.6mm Specification:A:Four-piece filter Colour:As Shown Material:plastic+optical glass lens Package Contents: 1set * filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.