Hi Packhouse
there is a optics focal acrylic lens on it when i buy the Scubapro Bluelight Halogen. I will take a test dive first before i cut i out, if it look cray in the water (maybe this week i go Ice dive 3 C" ,,he he ,see how cool it is in Denmark 2009 http://odessa.dk/divelog/ )
Ses you ,,,,,