The technique needed to view the 'stereoscope' pictures in perfect '3D' without the aid of a viewer is very similar to that used with the modern 'Magic-Eye' 3D pictures, which have recently been quite popular, and available in many shops.
Those who have had success in viewing these recent 'Magic Eye' pictures should not experience much difficulty in attaining the '3D' effect with these 'stereoscope' pictures. For those not familiar with this technique, here's how it's done:
The secret, in a nutshell, is to get your left eye looking at some point in the left-hand picture, while, at the same time, your right eye looks at the corresponding point in the right-hand picture (PARALLEL VIEWING): this is alien to normal viewing (where both eyes 'view' the same point at any one time), but the following instructions should enable you to achieve the effect (it can be difficult at first, but becomes quite easy with practice):
N.B: Try the technique on the '3D SAMPLE' picture at the bottom of this page: you will notice a tendency for the two DOTS at the top to 'come together'. Adjust your eyes so that the dots DO come together and merge: at this point, the picture beneath should appear in perfect 3D.
If you are having difficulty achieving the 3D effect, try these two techniques:
N.B: These pictures are optimised to give best results in the 800 x 600 screen resolution mode (the effect is also quite good in 1025 x 768 mode), and on a 15" monitor. In 640 x 480 mode, however, or on a monitor larger than 15", the effect may be more difficult to achieve due to the increased size of the images. In a nutshell, the effect is fairly easy to attain providing that the total width of the picture pair does not exceed about 6" (the smaller the images, the easier it is to attain the effect!). If the width of the picture pair is greater than this, viewing from a little further away from your screen may help; or, if your monitor has a 'picture-width' adjustment, reducing the width of the picture will also help. Alternatively, you could download the images and use a graphics program to re-size them.
With practice, the 3D effect can be achieved within a few seconds of looking at the pictures.
3D SAMPLE PICTURE
Imagine the picture is transparent - look 'through it' and focus your eyes on some imaginary distant object - you should notice the 2 dots appearing to 'come together' - when the dots DO merge, the picture will appear in perfect 3D!
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