What is the meaning of shifting axis photography in Xiaomi's likeness?

Let the real world look fake, and let the photos fully show the feeling of "artificial city".

Shift axis photography:

That is, shifting lens photography refers to the works created with shifting lens, and the photos taken are as special as miniature models. The function of shift lens was originally used to correct the perspective problems caused by ordinary wide-angle lens, but it was later widely used to create photographic works that changed the focus position of depth of field.

Function:

1, correct the perspective deformation of the main body.

2. Realize the full-area focusing of the subject, so that the far and near subjects in the picture can form clear images.