8.5" Acrylic Wide-Angle Dome Port ~for Hasselblad HCD 4/28mmThis wide angle dome port is part of the N120 port system and features an acrylic element, anodized aluminum construction and is specially designed for use with the Hasselblad medium format camera and lens system. 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 N120 Weight 2. 63kg