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Special techniques
3D-photos
photo © Dot Lang, TX USA
Make 3D-photos yourself
Everyone has at some time experienced 3D-films, where you wear a special pair of glasses. Less well known is the fact that you can make 3D photos yourself in a few simple steps and view them unaided.
The latter takes some practise, but once you have grasped the technique, it quickly becomes a
compulsive hobby.
To experience photos in 3D, first of all you have to be able to look 'cross-eyed'. The trick is to adjust your eyes so that they focus in front of the photos. This reverses the manner in which your brain interprets the picture. To achieve this requires some practise. Try it with the above example.
Position yourself at a distance of about 40 cm from the screen and concentrate on the vertical strip between the two pictures. Relax your eyes and try to adjust them so that they are out of focus. When the focal point is in front of the two pictures they will merge in the middle and form a third picture. When this picture forms and you can hold it, you will see a real 3D picture with more depth and detail.
When you have grasped the technique, you will find it easier to adjust your eyes to see in 3D.
Making suitable photos for this technique is very simple. You take two shots, whereby you move the camera position approx. 7 to 10 cm horizontally relative to the first before taking the second. Then you place the photos next to each other on the computer in the reverse order. The picture taken with the camera more to the left is thus on the right of the other. If the camera was moved to the right, then this picture is placed on the left. Make sure that the photos are in the right order, otherwise it won't work.
I prefer to place the photos on a black background, but it also works without.
The best effect is obtained with contrast-rich photos that preferably contain objects at differing distances from each other. This gives a better feeling of depth. Also shots in half-light work well. But you must ensure that the subjects are stationary. If you take, for example, shots of plants or trees swaying in the wind, the results won't be as good. If you want to achieve the 3D-effect with photos of clouds, maintain
a larger distance between the two shots, 30cm for example.