Flip Filter System with macro expansion. Includes the attachable filter frame, four different filter discs (three red filters for different depths in blue waters, one magenta filter for green waters), as well as a macro system with 72mm frame and a matching +10 diopter macro lens. The filter frame can alternatively be equipped with two different filter discs, or with one filter disc and the macro lens. Depending on your needs then one of both will work in front of the camera lens. Alternatively, the frame of the macro lens can also be equipped with any 72mm filter.