The problem of photography

This was taken with a large format landline. Generally, only the large-format landline has the function of lens axis shift.

By moving the axis and swinging the front group and the back group, you can control the visual angle, the virtual and real position, and even let two people stand on the same plane, one virtual and the other real. . . . In short, this kind of camera is fun, expensive and heavy, and it is the first choice for professionals.