【Compatible with DJI Mini 4 Pro】Variable ND drone lens filters designed to enhance your aerial photography experience. Light reduction is available in 1-5 f-stops (ND2-32) and 5-9 f-stops (ND32-512). This extended range of densities allows you to easily control exposure and adapt to different lighting conditions during drone aerial photography. 【2* Variable Neutral Density Filter】The ND2-32 filter with 1 to 5 f-stops is suitable for moderate lighting conditions, allowing slower shutter speeds and wider apertures. The ND32-512 filter with 5 to 9 f-stops of light reduction is more suitable for bright lighting conditions. It allows for longer shutter speeds even in intense light, providing creative effects such as soft waterfalls or blurred movement. 【Multi-coating Optical Glass】Made of high quality AGC optical glass with 28 layers of nano coating to reduce reflections, waterproof, scratch resistant, mould and oil resistant to ensure high resolution images. 【Safe on Gimbal】K&F Concept's ultra-lightweight technology and precision bayonet ensure that each filter holder is rigorously tested and will not adversely affect the gimbal of mini 4 pro drone. 【Precision Installation】Frame bayonet design, perfect fit with the body lens base, easy to install/disassemble, and a filter case is included for easy storage.