Eötvös was an enthusiastic photographer. He made hundreds of stereoscopic glass slides. These slides need to be viewed by a special device (stereoscope), that was quite popular at that time, and similar to the stereoscopic viewer you can buy in toy shops today.
These images here were modified so, that the left and right side parts were swapped.
This way it is possible to see them in 3 dimensions without any
additional device.
You just have to squint to see the left picture by your right eye and the right picture
with the left one. Try to place the images of the two eyes on top of each other, and to
focus. First time it is not easy, but with a little patience you can become quite an
expert.
It will be worth the effort.
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| The "Tre Cime" in the Dolomites |
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Try to see the picture, as it is shown on the figure. It might be easier with the following method: Hold your finger between the eyes and the screen. If you look at the picture, you will see two fingers. Moving your finger back and forth, the distance of the "two fingers" will change. Adjust your hand so, that the "two fingers" should point right in the middle of the two images. |
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| Now look at your finger. You will see one finger and a blurred 3D image in the middle. Keep your eye's direction steady, and try to focus on the 3D image in the middle. |
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