Now this puts my measly 8 megapixels to shame.
A small exerpt from the Wired.com article to give you some idea of what we are talking about here when we say 4 gigapixel...
Armed with a self-designed camera he crafted from parts of spy planes and nuclear reactors, Flint is crisscrossing America, taking thousands of pictures of cities, monuments and national parks.Read more about the Gigapixel Project.
Weighing more than 100 pounds, Flint's camera captures images at 4 gigapixels -- a resolution high enough to photograph four football fields and capture every single blade of grass. When printed at maximum resolution, the images are as big as billboards, but render the finest detail.
A photograph of a San Diego beach shows a paraglider swooping over bluffs. Zoom in on some tiny dots on the cliff, and a group of people with binoculars and telephoto lenses can be seen. Follow their gaze, and you'll see naked sunbathers on the beach.
"We might have to add fig leaves in Photoshop, it's that good," said Flint.