This Flat Lens Port Flat Lens Port for Olympus OM-D Underwater Housings from AOI allows the use of Olympus ED 14-42mm f/3.5-5.6 EZ and ED 30mm f/3.5 macro lenses. The port has 67mm threads for the addition of macro or wide-angle wet lenses. Its glass front elements bears an antireflective coating on both sides, and the bezel is constructed of hard anodized aluminum.