3D photgraphy, also known as stereo photography, is nothing new.
But while it is easy to make 3D photos, 3D viewers are still very primitive (think about those orrbile blu-red glasses or anaglyphs, or cross-eye vision ), or very expensive (like stereo projectors).
What I found was that a device for viewing 3D photos, cheap and easy to use, was still not available.
So, i made one.
Well, I hoped to make a product and be able to sell it, but at the end, I had still my prototype laying here, so let's at least make an instructable out of it :)
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Step 1: How it works.
The basic idea is always the same: you must have two photos, two images, of an object.
One is what the left eye would see, the other is what the right eye would see.
Usually you get these two images with two cameras, or by taking a photo and sliding the camera horizontally for 6-7 cm, that is the distance from one eye to the other.
Then, you show the two images to people, managing in some way that their left eye sees only the image taken with the left camera, and their right eye sees only the image taken with the camera on the right.
If you manage to do so, no matter how, they will see a 3D image of the object you photographed.