An ND filter works like sunglasses for the camera: it dims the light so that motion in the footage stays smooth on a bright day. Strength is marked by a number — ND8, ND16, ND32 and upwards; the higher it is, the darker the filter. Freewell and Sunnylife sets are made separately for each DJI model because the mounts differ, and they usually come in packs of 4 or 6. For taming reflections there are polarising ND/PL filters and clear UV ones.
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An ND filter works like sunglasses for the camera: it dims the light so that motion in the footage stays smooth on a bright day. Strength is marked by a number — ND8, ND16, ND32 and upwards; the higher it is, the darker the filter. Freewell and Sunnylife sets are made separately for each DJI model because the mounts differ, and they usually come in packs of 4 or 6. For taming reflections there are polarising ND/PL filters and clear UV ones.