Source: Library of Congress, http://www.loc.gov/pictures/item/2011661050/
For Charles Dickens’s bicentennial this month, The Atlantic has posted an online appreciation and a stereopticon portrait. The two images in the portrait aren’t at all balanced; one is much darker and more contrasty than the other. But here’s what an anaglyph (red-and-blue composite; requires glasses with red and blue lenses) looks like after some cosmetic work in Photoshop. Click to enlarge.