Crossing aisles in hall 4.1 of the Photokina trade fair in Cologne, Germany.
The shooting was done with a 3.15 meter (appx. 10.33 ft) pole to reach a more elevated viewpoint above the crossing aisles. The pole was extended to its full length. The lens was mounted with a custom-made bracket, which allows me 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.