1. Optical glass, precision grinding and polishing, high-definition imaging 2. Using multi-layer nano-coating technology to endow the lens with waterproof, oil-proof and anti-fouling on both sides 3. Aviation aluminum frame material, light weight does not affect the work and self-inspection of the gimbal, laser laser LOGO, no fading and no rust 4. The CPL is adjustable, the light can be adjusted by rotating the gear, and the appropriate luminosity can be selected for shooting; 5. The VND filter can be adjusted in multiple gears. You can rotate the filter gear to adjust the gear according to the needs of the scene, eliminating the cumbersome steps of disassembling and assembling the filter 6. Set of magnetic absorption storage box, the box is equipped with soft sponge, fixed filter, easy to replace, and can also store the original lens frame 7. Easy to install and disassemble, the original lens will not be damaged during installation, and the filter can be replaced at any time, so that you will not miss the wonderful moment 8. The anti-light pollution filter can effectively filter out artificial harmful light sources, and the unique color reproduction can effectively enhance the layering of the picture, reduce the yellow-orange light source of artificial light sources to extract the colors hidden under light pollution, so that it can be more natural Color performance, so as to achieve a more pure shooting effect 9. The star light mirror is suitable for shooting night scenes and art photography, and can produce a radiant effect when shooting point light sources 10. The brushed filter can produce retro stripe glare effects, increase the sense of science fiction, and take more creative and more cinematic photos or videos 11. Main material: aluminum alloy (frame) + optical glass 12. Net weight: 5.5g (UV/ND8/16/32), 5.8g (star mirror), 8.5g (CPL/brushed filter), 10.4g (VDN2-5/VDN6-9), 6.1g (anti-light Harmful) 13. Product size: 4.7x4.7x0.4 cm (UV/ND8/16/32/star mirror/anti-light pollution), 5x4.7x0.5 cm (CPL/VDN2-5/VDN6-9/brushed filter) , 10x8x2 cm (ND/set of 4)