This filter is designed for diving fans who like taking photos and videos under water. Due to wave refraction, pictures taken underwater may suffer color distortion. Using this color correction filter, pictures taken under water will be more lively and natural. Red: Used in the depth of water 10-20 meters, at noon ( when sun beat down upon the water), smoke filters, to restore red absorbed by water.

• Dramatically improves underwater colors

• Tough metal frame

• Simple installation with snap-on design