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Category Archives: Photography
Our eyes help us to perceive three dimensional depth by having two visual sensors, separated by about 100mm of distance. This slight difference between the right and left eye is enough for us to see what is in front or behind the things we see. Since most cameras have only one lens, they show a two dimensional view of the scene.
Stereograms were invented during the early days of photography, and used two cameras, slightly offset, to show three dimensional scenes. Continue reading