The VND Filter from SmallRig is designed for the Insta360 Luna Pro camera to reduce the amount of light entering your lens by 1 to 5 stops. This allows shutter speeds to be lowered to more cinematic levels or for the aperture of your lens to be opened to create a shallower depth of field. The filter features multicoated optical glass to prevent scratching and reflections. It mounts onto the Luna Pro lens via magnetic attachment for fast installation and removal.