The panorama was created by installing four cameras around the outside platform of the 29th floor of the British Telecommunications tower. The cameras were then attached to robotic mounts timed to take four frames a second. It took three days to snap the images and three months for a computer program to stitch together all 48,640 individual shots. (via 320-Gigapixel Photo Shatters Record : Discovery News)
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The panorama was created by installing four cameras around the outside platform of the 29th floor of the British Telecommunications tower. The cameras were then attached to robotic mounts timed to take four frames a second. It took three days to snap the images and three months for a computer program to stitch together all 48,640 individual shots. (via 320-Gigapixel Photo Shatters Record : Discovery News)

Source: news.discovery.com