ND8-ND2000:Made with premium Japan Optics glass, Rotating ring between ND8-2000, adjusted from 3 to 11 stops,reduces the amount of light without effecting color balance.Multi-Resistant Green Coating:18 layer green coating to help repel water and dust, reducing the amount of light that hits your camera sensor, giving you the chance to experiment different creative possibilities.Ultra-Slim:The filter frame is only 7.5mm, and super lightweight Cnc ring used in construction prevents adverse effect.nd Filters:Enables slow shutter speeds to be used to record movement in subjects such as waterfalls, providing a silky smooth affect to flowing water..