From the world-famous Eastman House comes a lavish, expansive guide to nearly 200 years of photographic invention and innovation. Richly visual and wonderfully informative, it showcases 500 groundbreaking cameras from the museum''s collection that forever changed our perception of the world, and of ourselves.   Todd Gustavson, curator of technology at the George Eastman House, organizes the cameras into genealogical categories--from detective to digital, stereo to subminiature. Alongside the 35mm, you''ll see curiosities like stereoscopic cameras, postcard cameras, and spy cameras hidden in watches, buttons, and fountain pens. Essays by experts in the field--including Robert Shanebrook, Martin Scott, and Mark Osterman--trace the technological development of the camera and provide insight into the innovators behind the lens.