>>6709060>Caused by high depth of field or moving the camera around a point.Why even bother commenting if you don't know?
It's called "tilt-shift photography" because it is performed with a tilt-shift lens. It has nothing at all to do with moving a camera around. They're heavily used in architectural photography, since taking a photo of a tall building from the base means that the edges of the building will appear to converge toward the top. The tilt-shift lens uses an internal diaphragm and lenses that can be shifted on an angle to change the perspective, such that the edges of the building would appear to be parallel.
If you use the lens to take a picture of distant objects, you will get the effect that you see in these tilt-shift photographs, where objects on a certain horizontal plane will appear in focus and compressed, while objects outside of it appear out of focus and elongated.
Pic related, it's a tilt-shift lens.