Long story short, for folks that want to get correct info:
Goto
http://www.ar15.com/forums/f_6/18_.html and read up writing made by a user named "
cj7hawk". He's a well respected austrialian user on the night vision section of the forum. The guy has actual experience with US image intensifer (From thin-filmed to filmless), Photonis XD4, XR5 (not sure about INTENS), Kato'd Gen 3 (Russian), Harder Digital Gen 3 (German). Both Azathoth and I frequently use his posting as referencing sources.