• BK7 Optical Glass Dome

    The DP-230 is constructed from hand crafted materials with an optically coated BK7 glass dome at its core. The surface of the dome element is coated with a magnesium fluoride broadband anti-reflective coating to minimize internal reflections from camera lenses, lettering on cameras, etc. which can be a problem in a bright ambient light situation.  This coating yields an amazing 99.7%+ transmissive value for true distortion free images.


  • Large Radius

    Assures a thin water line for over/under shooting, and the optically coated glass surface minimizes water beading.

  • Aluminum Shades

    Designed to offer a lifetime of service and extend far enough to protect the dome when placed face down.