The Fusion 3-D camera system was co-developed by James Cameron and and Vince Pace. The rig uses two Sony HDCF950 HD cameras to create stereoscopic 3-D. Cameron first used the system on his 2003 IMAX film Ghosts of the Abyss.

It has since been used by Robert Rodriguez on Spy Kids 3-D and The Adventures of Sharkboy and Lavagirl, and most recently on Hannah Montana and Miley Cyrus: Best of Both Worlds Concert and Journey to the Center of the Earth.

But I’m not exactly sure what improvements Cameron made to the rig over the last five years.