Most divers know that color is lost as you descend deeper into the water. Reds disappear and videos/ photos can look faded and too blue. Tovatec's Optical Filter System instantly corrects colors for beautiful pictures and videos (can be used with or without the MERA's 1000 lumen video light). The system includes two underwater color filters for primary and green-water dives in a re-useable zippered case. The system is made with optical grade materials to withstand the rigors of diving.