The Fantasea Line 55mm PinkEye Filter M55 is a color correction filter with a 55mm thread. It fits over an underwater housing's lens port and can be installed and removed during the course of the dive. The PinkEye Filter restores the pink color absorbed by green water and enables the production of vivid and colorful underwater images and videos. In shallow depths, this filter can serve as an attractive alternative to artificial light sources. It can be mounted on 55mm threaded lens ports, or on other lens ports by using an adapter.