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3-D Stereoptics: How to View 3-D Stereograms - 3-D Stereographic Images
With a little practice, stereograms - stereographic image pairs - are easily viewable in 3-D: 1. Click the thumbnail stereogram pair to enlarge it. 2. Sit back, squarely in front of the screen ; don't tilt your head. 3. Cross your eyes severely enough to merge the two stereographic images into three. Allow the new, center stereographic image to become a precise overlap of the original, outer two. 4. Hold your focus while beginning to examine the marvelous middle image. It will become increasingly clear, and you will see it in startling 3-D, 3-dimensional depth. It's worth the effort (and good eye exercise).
(Note: If you have difficulty, hold your index finger vertically about 8 to 10 inches in front of your nose and in front of the stereograms. Focus on the fingertip. See if the center image automatically merges properly. Or, try viewing through a card with a 2" hole held 6"-8" in front of your eyes. Focus on the frame, not through it. You will probably see only the 3-D center image floating in space - and this has the advantage of eliminating the bothersome side views. Finally, if you normally wear glasses to read the computer screen, use them for this viewing.) About the Images: The photo 3-Ds were made with an invented image splitter (see Inventions
). Some stereograms were made internally on an Amiga computer, using improvised displaced-spherical-mapping.
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