With the diving filter for the action one you are optimally equipped for your next dive in the ocean. The diving filter can be quickly and seamlessly attached to your Actioncam action one using the thread on the lens cover. Simply unscrew the supplied lens cover, attach the dive filter and you're good to go. The diving filter is particularly suitable for diving in open water, sea or ocean. Here the red filter absorbs part of the short-wave blue light, correcting the blue cast of the light under water.