The Sony Action Cam Filter 3-Pack from Polar Pro is an above-water filter kit for use with Sony AS100 and AZ1V Action Cams. The pack includes a polarizer filer, 2-stop neutral density filter, and 3-stop neutral density filter. The polarizer helps cut down on reflection and increases color saturation, making it a good addition when shooting near water or snow on bright days. The ND filters are used to reduce exposure when shooting bright scenes. They also have the added benefit of slowing down the camera's shutter speed, which results in increased motion blur with fast-moving shots. The filters all feature glass lenses for optimal image quality and scratch resistance.