1. Protect your expensive lens from dust and scratch while not lowing your photo quality. 2. Significantly reduce lens flare and ghosting while making the filter anti-scratch, reduce reflection, water repellent, increase surface durability, oil & dust resistant.3. ND Filters washed out photos & video due to bright sunlight for better contrast & rich color.4. Portable and durable, easy to install. 5. Lightweight, high transmittance and low reflectance. 6. Note: Only include ND Lens Filter, DJI Spark and its Accessories are not included in package.