Description: Multi-layer coating can filter ultraviolet and stray light for clearer imaging. Easy to install and move; Note: Remove the old lens cover before installation. Optical glass material is preferred, with stable optical properties and high uniformity. The CPL filter from Freewell is an excellent way to avoid unwanted glare from reflective sources to lower the picture quality of your drone. ND Filter: Higher the ND Value,more obvious the light reducing effect . It Reduces the amount of light in very bright conditions so that camera can choose the correct exposure value and avoid excessive exposure. Specifications: Material: optical glass. Size: show as pictures. Color: black. Applicability: replacement for for Mavic Mini drone. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package include: Type one: 1 x Camera Lens Filter(optional). Type two: 3 x Camera Lens Filters(CPL, ND8, ND16). Type three: 4 x Camera Lens Filters(ND4, ND8, ND16, ND32). Type four: 4 x Camera Lens Filters(ND4 / PL, ND8 / PL, ND16 / PL, ND32 / PL). Type five: 4 x Camera Lens Filters(MCUV, CPL, ND4, ND8). Type six: 6 x Camera Lens Filters(MCUV, CPL, ND4, ND8, ND16, ND32).