Using GigaPan's mega-panoramic EPIC Pro tripod technology, photographer Gerald Donovan has set the world record for the largest digital panoramic photograph.The 45-gigapixel image of Dubai was taken with a Canon 7D and is compiled of nearly 4,250 images that were taken over 3.5 hours. Before this mosaic was created, the previous title-holding panorama was 26 gigapixels, depicting the Paris skyline..If printed in actual size, this photo — which includes the world's tallest building, the Burj Dubai — would be the size of nearly 1,200 billboards.Donovan's image, as well as other notable images taken with GigaPan's EPIC systems can be viewed at gigapan.org.