The 12 Biggest Breakthroughs in Photo Technology

The 12 Biggest Breakthroughs in Photo Technology — page 1
1 The Camera Obscura Turns the World Upside Down No one knows when people first noticed a strange optical illusion When light from the sun shines through a small hole and into a darkened room it creates an image The image appears on the wall opposite the hole It shows the scene outside the room The image is upside down That is because light travels in a straight line Light from the bottom of the outdoor scene shines up through the hole to the top of the wall Light from the top of the scene travels down through the hole to the bottom of the wall This image became known as camera obscura These are the Latin words for dark room By the early 1500s people were building box-size devices called camera obscuras But the images these made were not very clear A camera obscura from 1800 44