How do I view the stereo images?
This website contains many pairs of photos that can be viewed as 3-dimensional images. Viewing stereo photos for the first time can takes some practice, but itís worth the effort because a 3-D image offers the depth and perspective of having a solid model object in front of you. To view the images, position yourself in a comfortable chair about a yard away from your computer monitor. Look just above the monitor and let your eyes rest on a distant object. Now drop your eyes to the image pair on the screen. Your two eyes will automatically converge their gaze toward each other and refocus to bring the closer object into a sharp focus. To properly view the stereo image you will need to focus on the images -- without letting your eyes converge. Try "looking past" the picture on the screen so that you are "seeing double." If you doing this correctly, you should see four images on the monitor in front of you. Donít blink! Rock your head from side to side until all the images are lined up. With practice, you can control the spacing of the two pairs of images my adjusting the "convergence" of your gaze. To see the 3-D image, combine the innermost two images so they are superimposed on top of each other. The process may take a few minutes. When you get it right, the image will suddenly "click" into a 3-dimensional presence!
You will be surprised at how this will enhance your understanding of these microscopic objects. After you have done the trick a few times you will have developed a useful skill that will help you view stereo pairs in this web site -- or view stereo photos you have taken yourself! 
Page established 2-10-97, updated 3-15-98 -- copyright Jim Davison
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