
In the West, they come in spurts or are in theme park theatres. Panavision did handle the Optimax over/under system in the 80s. While the Imax 3-D system does't use converge because the size of the screens make it okay to have most of the images come off the screen, most systems going back to at least the 30s have a convergence adjustment.

They would make a lot more money on that setup than on investing in very expensive Digital Cameras whose technology goes out-of-date very quickly. It's too bad that Panavision doesn't opt to develop a modern Space-Vision 3D Camera given that the Patents are long expired. Is there any reason this computer-controlled system of Lens control could not be incorporated into a modern version of the 'Space-Vision 3D' Cameras? I assume that these Digital 3D Cameras are at the 2 Million Pixel linear resolution which is considerably lower than the natural optical resolution of a 21.95 x 16mm Film Frame.
