Red Glass Filter-Tropical Water Color Correction-Scuba Diving-For Hero3 Waterproof Housing 
This is the ultimate red filter for the GoPro Hero3 Camera. It provides razor sharp color correction for blue or tropical water. It simply snaps on to the Hero3 waterproof housing, and can be removed in less than a second. The filter is made out of glass for super sharp optics in addition to being extremely scratch resistant. This filter's optics are better than any other red filter on the market and it is less expensive. This red filter is designed for color correction in blue or tropical water. Simply pop the filter on around 10 feet below the surface and be amazed. The GoPro's automatic white balance has trouble with red light loss, the red filter simply compensates for red light loss allowing you to capture vibrant reef color. So pick up a Slim Frame glass red filter before your next dive and show your friends how vibrant those bright reef colors were!