The oldest and most reliable method of making stereoscopic panoramas is also one of the easiest. It involves shooting a heavily overlapped series of fisheye pictures in one rotation of a camera mounted off center, then using special masks to stitch left and right omnistereo spheres from that one series of photos.
Wim Koorneef’s widely known tutorial on this method has taught a lot of people, including me, how to do it. It is said to still be online in a revised version, however I can’t find it. So I thought I would contribute one of my own.
Here it is.