Universal Action Camera Lens Filter for Gopro Hero Series - Nd16 FilterFeatures: Multi layer coating filter, high transmittance and high light to restore the true colour Using professional optical glass lens, the image is clearer Protect your expensive lens from dust and scratches without degrading photo quality. CPL Filters: Increases colour saturation, creating deep, rich scenic images. Helps to reduce the amount of light entering the lens. ND Filter: You can get more freedom to control aperture and shutter, bring more