ND Filter for DJI O4 Pro camera. The filter has an aluminum frame and is made of high quality AGC glass, which is typically used for dioptric glasses.
ND filters attenuate the amount of light that hits the camera chip. This will increase exposure time and cause a slight blurring of the edges of the video at higher speeds. This makes the video look smoother and more natural. The value of the ND filter should be selected according to the light intensity.