What is a shift camera?

Compared with ordinary cameras, the main feature of axis-shifting cameras is that the lens (or the lens plate on which the lens is mounted) and the back of the mounted film can be moved or twisted through flexible connectors (such as leather cavities), thus changing the perspective effect and definition range of images.

The so-called "shift-axis photography" refers to a camera equipped with a "shift-axis lens". Therefore, understanding the "characteristics of off-axis photography" is essentially understanding the "characteristics of off-axis photography lens".

Shift-axis camera lens is a kind of camera lens that can adjust the transmission relationship of the captured image or focus the whole area.

The main feature of axis-shifting camera lens is that the main optical axis of the whole camera lens can be translated, tilted or rotated on the premise that the plane position of the camera body and the film remains unchanged, so as to adjust the perspective relationship of the shot image or focus the whole area.

The reference clear image field of the camera lens with shifting axis is much larger, which is to ensure that the camera lens can still get a clear image after its optical axis is translated, tilted or rotated.

Axis-shifting photographic lens is also called "TS" lens ("TS" is English "Tilt &；; The abbreviation of "shift", namely "oblique shift"), "oblique beat", "shift beat" and so on.

After the 35mm single-lens reflex camera adopts the shifting camera lens, the single-lens reflex camera also has the function of controlling the viewing angle by adjusting the leather cavity of the large-scale combined camera, thus expanding the application range of the 35mm single-lens reflex camera. In the field of professional photography, the lens of shifting axis camera plays a considerable role.

The lens of shift axis camera has two main functions: one is to correct the perspective deformation of the subject; The second is to focus on the whole area of the subject, so that the far and near subjects in the picture form a clear image.

Axis-shifting lens is widely used in architectural photography.

When shooting the shape of a building, a camera lens with wide-angle focal length is often used. However, due to the perspective effect of wide-angle lens, the lines of architectural modeling converge upward. When shooting the shape of a building with an axis-shifting camera lens, this line convergence phenomenon can be corrected by the angle adjustment function of the lens, so that the building in the picture does not have the usual inclination or even looks like it is going to fall down, but it still appears very vertical.

Shift-axis photographic lenses are also often used to take pictures in which all areas are in focus. In commercial photography, the translation and tilt shooting functions of this lens are often used in combination, which can correct the perspective deformation of the subject and obtain a full-area focusing effect that is difficult to achieve with ordinary photographic lenses.

What is moving mirror photography?

Shift-axis photography generally refers to the works created by shift-axis 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.

Moving mirror photography is to make the real world look fake and make the photos fully show the feeling of "artificial city"!