| Stereo Photographs Brockton, MA |
| This web site is a little different than the normal. It is a web site that is made up of 3-D or stereo photographs. Normally, stereo photographs are viewed with an optical or mechanical devise to provide the separation of the photographic images, allowing each eye to view only the image that is intended for that eye. This web site will be using a technique that is not normally used for providing the separation and isolation for the left and right eyes. It is a seldom used technique, but very effective for this application. Everyone is familiar with optical illusion where an object, generally a line drawing, can be viewed in such a manner that it takes on a spacial configuration. It is the combination of the eye and the brain working in conjunction that permits the alteration and spacial configuration of the original drawing. The following simple example will prepare you for viewing the stereo photo's. Hold a ball point pen about 18 inches in front of your face in a vertical position, focus your eyes on the pen. Then, very gradually, unfocus or cross your eyes until two images of the ballpoint pen appear. Next, hold two ballpoint pens side by side separated by approximaetly 1 inch. Now repeat the same procedure as before. Slowly cross your eyes once again. Now there should be 4 images. While holding your eyes crossed in that fixed position, slowly increase and decrease the spacing of the two ballpoint pens. As you do this, you will note that the two inner most images can be made to merge an coinside so that only 3 images can be seen. Next, repeat the same procedure as before, but this time, instead of changing the spacing between the ballpoint pens, change the degree of focus or crossing of the eyes until you are able to achieve the same result as before. You should note that it is not necessary to cross your eyes but a minimal amount to achieve the desired affect. Now you are ready to try your luck with the first set of photographs. You should sit between 18 and 24 inches away from the monitor screen for optimum viewing. When you view the first set of photographs, focus on both of the two photographs. You need only to cross your eyes to see three images. Because the photographs are large in width, you would have to strain your eyes serverely in order to see four images. The two inner images have already partially merged forming the third or middle image. This middle image is a composite of both the left eye and the right eye images. This is the goal that you want to achieve. Now, by changing the degree of focusing or crossing your eyes, bring both images to merge into precise registration. Your brain should make the adjustment and the 3-D effect will take place. It may appear to some immediately, but for others it may take a few tries. When you have achieved the 3-D affect once, it will appear more readily each time you try. If you find that you are experiencing some eye discomfort, it may be that your head might be tilting slightly to one side or the other. Slowly tilt your head to either side until the problem ceases. Finally, the two outer images cause a distraction when viewing the prime or 3-D image (center image). These can be eliminated by doing the following. While you are observing the 3 dimensional photographic image ( the center image ), slowly bring your hands, palms in, up along the side of your head beside your eyes. Then slowly bring the hands in towards the eyes until the outboard images are totally blocked out. Now you are able to view the 3-D imagery without the distraction of the other two images. |
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