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Stereo photography closely imitates viewing with both eyes. By mentally "fusing" a stereo pair people with two healthy eyes can usually merge the two images seen by their eyes into one 3D image. Foreground objects appear to “jump” with respect to background objects. |
A simple explaination of
the principles behind stereo photography and a a brief history can be found
here.
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| An example of a stereo pair. If you cross your eyes until the front gourd on the right merges with it's couterpart on the left and hold them in that position for a few seconds the images should merge and you will be able to percieve some measure of the depth of the original scene. Here's another example. |
