Fotodiox Pro WonderPana Go Rose-Pink Underwater Filter Blue Water GoTough Filter (Rose-Pink) Enhances contrast and improves the color of blue water to give your subject a rich, natural tone In shallow depths, this filter can serve as an attractive alternative to artificial light sources Use this filter to produce warmer or more accurate colors when shooting underwater photography Premium grade anodized aluminum & optic grade, organic glass. Included plastic storage box with cushion liner 24 Month Manufacturer Warranty