Nauticam 6" semi dome portThis 6" wide angle dome port is part of the N85 port system and features an acrylic element, anodized aluminum construction and is designed for use with the Panasonic LUMIX G VARIO 7 14mm F4. 0 ASPH lens. Different size ports are available to support a wide variety of lenses and housing types. Port extensions or adapters may be necessary for some ports and housings. Technical Specifications Depth Rating 100m Port System N85 Weight Port Opening