We've all enjoyed 3D movies and stared at 3D pictures (stereograms) on walls - well, the first real stereographer was Sir Charles Wheatstone, who made geometric 3-D drawings and a device to view them called a reflecting mirror stereoscrope in 1838. This proved that stereo perception was a result of binocular vision.
Wheatstone's actual stereoscope is preserved at the Science Museum in London. It was eleven years later before Sir David Brewster described a binocular camera, and the first stereoscopic photographs began to be produced.
