Compatible with The Variable ND2-400 Filter is compatible with DJI Osmo Pocket and Pocket 2.Ideal for outdoor photography, capturing professional quality motion images and videos. ND2-N400 Adjustable It can be rotated from ND2 (1 f-stop) to ND400 (8.66 f-stops),easy to create different neutral density by rotating the ring.Reduces the amount of light without effecting colour balance. Optical Glass & Multilayer Coating Made of high quality optical glass.The multilayer coating helping repel water, dust & grease, while also preventing ghosting.Easy to clean and maintain. Magnetic Installation With the magnetic system,the ND2-400 Filter can be instal on DJI Osmo Pocket and Pocket 2 very quickly and easily. ND Filter Enables slow shutter speeds to be used to record movement in subjects such as waterfalls, providing a silky smooth affect to flowing water.