This new cap for the Beam Pro features a beveled lens opening that safeguards your lenses when stored in your pocket. There's no need to remove it when capturing photos. It also includes a hole for the flash, preventing heat damage caused by flash reflection in 2D mode. The cap works well with certain covers or can be used on its own if preferred. The cap also features a beveled shade around the lens which minimizes sun flares and other issues with reflections off water or the sun.