The shooting was done with a 3.15 meter (approx. 10.33 ft) pole to bring the other camera into view, which was also mounted on a similar pole. Both lenses were mounted with a custom-made bracket, which allowed us to mount the lens to turn around the no-parallax point of the lens.
As the lens is a fisheye lens, four pictures easily cover 360°. To be sure I took three exposures at each direction. The exposures were 2 f-stops apart. The best exposed set was chosen before stitching.