Feature: 1. optical glass, precision polished and polished for high definition imaging, 2. multi-layer nano-coating process, giving the lens high quality waterproof, oil-proof, dirt-proof and scratch-proof performance, 3. aircraft aluminium frame with laser laser engraved logo, matte black frame to prevent light leakage and ghosting, 4. anti-slip gear design, knurled pattern on the top and bottom of the frame, easy to install and remove, 5. installation without damaging the original lens and changing the filter at any time so that you don't miss a great moment, 6. The lens is made by nano-coating process, the colour presented by the lens is different under sunlight and light. UV The main function of the UV mirror is to absorb ultraviolet rays with a wavelength below 400 nanometers, and it can be used for shooting in seashores, mountains, snowfields and open areas, and can reduce the blue tone caused by ultraviolet rays. Helps improve clarity and color reproduction CPL The CPL function can eliminate the reflection on the surface of the object, so that the object can show the original clarity, texture and color saturation in the too bright environment ND he role of the ND filter is to filter the light and achieve the effect of weakening the light. The main uses are divided into several, one is to shoot very bright objects, such as the sun, astrophotography; The second is to use a large aperture in a well-lit environment, and the third is to use the slow shutter retardation hazy illusory effect. The "Skymind Store" store is an authorized store of Adhering to the principle of "committed to practical and innovative design, leading aviation professional photography!" philosophy. Founded in 2016, has grown into a leader and innovator in the drone accessories and action camera accessories industry in a short period of time. We offer a full range of custom accessories for drones, action cameras, handheld stabilizers. R&D, design and production of various drone accessories such as landing gear, protective covers, camera filters, etc. It has developed, designed and produced hundreds of products, and has dozens of intellectual property patents. It has provided high-quality products and satisfactory services to more than 100 countries and regions around the world and more than one million consumers. Thank you for your choice. We will provide you with a complete full range of services