If you look at the original photographers portfolio he gives a description of what camera and  lens were used for this shot.  http://www.joecornish.com/portfolio/view.asp?pid=133&sectionid=19&count=5

Comparing the two shots side by side this appears to have been taken probably on a dslr with a wide angle lens from the same spot. If it were a full frame dslr it coould have been something like the 16-35 or more probably due to the distortions noted above the 17-40.

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html