Feature: 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 DIMMING PROCESS: The use of coating light reduction technology avoids the color cast problem of traditional ND mirrors, and there is almost no color cast. 3. MULTI LAYER 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. ND32 to ND256 VARIABLE: The variable ND Filter is adjustable from ND32 to ND256, 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. Specification: Item Type: ND Lens Filter Model: ND6-9 Material: Aluminum Alloy + Optical Glass Product Color: As Pictures Shown Product Weight: Approx. 25g / 0.9oz 4 Levels Adjustable: ND32 ND64 ND128 ND256 Applicable Models: Suitable for DJI Air 2S Camera . Package List: 1 x ND Filter1 x Storage Box