How to use wide-angle lens for wide-angle additional mirror

The medium wide-angle lens is used for narrow environment photography such as news photography and reports. It can also be used to take big photos. wide-angle

Each aperture of the lens has a greater depth of field than the normal focal length, which is especially useful when it is impossible to capture quickly and focus accurately.

. Compared with ordinary lenses, these lenses are somewhat exaggerated in perspective reproduction, which is the case when the subject is close to the camera or tends to shoot.

Especially obvious. Perspective exaggeration distorts the vertical lines and spherical objects near the edge of the picture, and this distortion becomes more and more obvious with the shortening of the focal length.

Therefore, special attention should be paid to maintaining the horizontal position of the camera when shooting.

Ultra-wide wide-angle lens, if the viewing angle is within 120 degrees, will cause serious edge distortion, especially when the film plane of the camera is in line with the film plane of the camera.

Especially when the main bodies are not parallel. Ultra-wide wide-angle lenses have enough depth of field even under large aperture, and sometimes the depth of field is too large to focus.

Yes This kind of lens is used as a special effect lens for advertising illustration, architectural photography and general photographers.

The fisheye lens can produce a viewing angle of 180 degrees or more. This kind of lens often produces a circular image, and it is consciously made to draw a border.

The vertical and horizontal objects of the rim are extremely deformed.