Freewell polarising filter for GoPro HERO11 / HERO10 / HERO9 The Freewell Polarising Filter has been specifically designed for the GoPro Hero 11 / Hero 10 / Hero 9 camera, allowing you to reduce unwanted light reflections from water or other surfaces for more natural colours, deeper contrast and clearer details. It uses high quality optical glass that is scratch and dust resistant. Manufacturer Freewell Model FW-H9B-PL Compatibility GoPro Hero 11 / Hero 10 / Hero 9.