Collins I3 third generation night vision system. The basic I3 unit fits into a telescope like an inch and 1/4 eyepiece, also included are adapters to make it work with an Astrovid 2000 astronomy ccd camera (which I also have for possible separate sale). Everything works well, is in good condition, and has not been used very often, which is the reason for selling. This is not the new thin film photocathode technology.
A 50mm lens is also being sold as a part of the system. The lens seems to have a slight mechanical alignment issue but still works well. The 50mm lens permits the night vision to work in a hand held mode for viewing local objects. The Collins price for the I3 system with the adapters and the lens is about $2,400. I am willing to sell within the US to a U.S. citizen for $1,650.