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Here the camera is placed on a tripod, without levelling. The center of the image goes up to the sky after zoom
This is something we could all expect after previous Skycentrism movies concerning zooming experiments. (go to 0:32)
Here the camera is leveled with a libella. See what happens now.
The center of the image goes up..as well. Look closely. Finally it ends up in the water, not the sky. Why it's so ?
The thing is there should be no difference between the two situations at all. Read description please for explanations