Specifications: Frame: Ultra-thin Optical Frame Lens Material: Optical glass, Multi-layer Coating Frame Material: Aviation aluminum alloy Compatible For DJI MAVIC 2 PRO Drone Feature: UV Filter The UV filter also called ultraviolet filter, mainly prevents UV light from entering the camera,avoiding blue light to affect the images, at the sea, mountain and other open areas, where the light can be bluish or whitish. Using the UV filter in high mountains or altitude, increases the distance field of the shot and makese for a clear shot. It also provides protection to the camera. CPL Filter The CPL filter also called Circular Polarizer, is mainly used to eliminate harmful non-metallic reflected light, and increase the color concentration. It also enhances blue skies, highlights white clouds, makes the picture more thorough, improves image clarity and overall creates a more expressive and vivid photo. It is also often used to shoot through glass, water and underwater scenery. Adjust the Angle of the filter before using it. ND Filter Great for portraiture and outdoor scenes in strong sunlight. Reduces the amount of light reaching the film without affecting the color. Applies slow shutter speed under strong sunlight exposure. Allows wider apertures, effectively decreasing depth of field. ND-PL Filter In the field of drone and aerial photography, drone lenses have limitions on the sensitivity and weight ND-PL Filter has created afusion of ND and PL filter, weighting only 1.12g providing the photographer with photoged exposure time and eliminating polarized light. This filter combines the best of two words, and is a powerful tool for aerial photography and content creators. IF YOU HAVE ANY QUESTION, PLEASE CONTACT US, WE WILL SOLVE IT FOU YOU AS SOON AS POSSIBLE.