The Polar Pro Neutral Density Filter Lens is a snap-on attachment for the both the GoPro HERO4 and HERO3+. Neutral Density "ND" Filters are used to slow down the camera`s shutter speed, an ideal accessory to enhance filming motorsports, aviation, or other fast moving vessels. Using this filter to film speed activities will slightly blur the video`s surroundings for a much smoother picture. This filter is great for filming from a moving boat or other watercraft, and will give your video the illusion of high speed. A neutral density filter can also be used to tone down bright scenes, and will help prevent your video from appearing blown out with too much light. The filter snaps directly onto the HERO3+ waterproof housing. View our full selection of Underwater Photo Accessories.
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