The Freewell Bright Day filters are ideal for GoPro HERO 9/10/11/12 camera owners who want to get great photos and videos in different lighting conditions. The set includes 4 filters: ND8/PL, ND16/PL, ND32/PL and ND64/PL, which provide excellent image quality even in strong sunlight. ND/PL filters combine the functions of ND (neutral) and PL (polarizing) filters. ND filters allow you to control the amount of light reaching the camera's sensor, while PL filters eliminate glare and improve color saturation. By combining these functions, Freewell Bright Day filters provide excellent image quality in all lighting conditions.