ND filters (Neutral Density) reduce the amount of light reaching the film without affecting the color. Can be used to enable slower shutter speeds. Also can be used to better separate subjects from the background by allowing wider apertures, effectively decreasing depth of field. Great for portraiture and outdoor scenes.
Compatible With: Only for SJCAM SJ4000 , SJCAM SJ4000 Plus Action Camera.
NOTE: Not fit for Fake SJ4000 Camera