1、High Definition Optical Glass: The lens is made of high quality optical glass through high definition grinding treatment, which can produce high definition picture quality. 2、Coating Light Reduction Technology: The use of coating light reduction technology avoids the color cast problem of traditional ND mirrors, and there is almost no color cast. 3、Multilayer Nano Coating: With double sided multilayer nano coating technology, the lens has waterproof, oil proof, anti fouling and scratch proof performance. 4、ND Lens Filter: ND filter can prevent overexposure in strong light environment, resist scattered light, increase color saturation, make the picture more transparent, and achieve a large scale effect. The number after ND represents the dimming ability. 5、ND4 to ND32 Variable: The variable ND Filter is adjustable from ND4 to ND32, you can adjust it according to the shooting requirements. A filter includes 4 levels of light reduction capability, which is very practical and convenient, suitable for DJI Air 2S Camera. Item Type: ND Lens Filter Model: ND2-5 Material: Aluminum Alloy + Optical Glass Product Color: As Pictures Shown Product Weight: Approx. 26g / 0.9oz 4 Levels Adjustable: ND4 ND8 ND16 ND32 Applicable Models: Suitable for DJI Air 2S Camera 1 x ND Filter 1 x Storage Box