In photography, a perspective control lens allows the photographer to control the appearance of perspective in the image; the lens can be moved parallel to the film or sensor, providing the equivalent of corresponding view camera movements. This movement of the lens allows adjusting the position of the subject in the image area without moving the camera back; it is often used to avoid convergence of parallel lines, such as when photographing a tall building. A lens that provides only shift is called a shift lens, while those that can also tilt are called tilt-shift lenses. The terms PC and TS are also used by some manufacturers to refer to this type of lens.
Short-focus perspective-control (PC) lenses (i.e., 17mm through 35mm) are used mostly in architectural photography; longer focal lengths may also be used in other applications such as landscape, product, and closeup photography. PC lenses are generally designed for single-lens reflex (SLR) cameras, as rangefinder cameras do not allow the photographer to directly view the effect of the lens, and view cameras allow for perspective control using camera movements.
Perspective control is a procedure for composing or editing photographs to better conform with the commonly accepted distortions in constructed perspective. The control would:
make all lines that are vertical in reality vertical in the image. This includes columns, vertical edges of walls and lampposts. This is a commonly accepted distortion in constructed perspective; perspective is based on the notion that more distant objects are represented as smaller on the page; however, even though the top of the cathedral tower is in reality further from the viewer than base of the tower (due to the vertical distance), constructed perspective considers only the horizontal distance and considers the top and bottom to be the same distance away;
make all parallel lines (such as four horizontal edges of a cubic room) cross in one point.
Perspective projection distortion occurs in photographs when the film plane is not parallel to lines that are required to be parallel in the photo. A common case is when a photo is taken of a tall building from ground level by tilting the camera backwards: the building appears to fall away from the camera.
The 12-24mm F5.6 lens is unusual – the company says it's the "first wide-angle zoom shift lens," giving you control over perspective without being locked into a single focal length ... For one, the lens' ...
UniquePerspectives...LensSelection and ApertureControl ... By strategically choosing the appropriate lens and adjusting the aperture, you can achieve captivating perspectives and control the visual emphasis within your night compositions.
Rectilinear design is a minimum requirement that pro architecture and interior photographers in particular expect from a wide angle lens, and if you keep the lens is parallel to your subjects, perspective distortion will be controlled, too.
Poll ... Key Highlight ... Yumi’s cells offer a unique perspective, narrating the life of an ordinary office worker through the lens of the brain cells within her head, which control her every thought, feeling, and action ... .
Regulatory bodies often lag behind in understanding and controlling emerging technologies. To lead effectively in this evolving landscape, leaders must adopt a dual-lens perspective.
Owen Ziliak/Sun-Times ... The Lindblom principal is one among several who have been removed ... Owen Ziliak/Sun-Times ... “The lens of the law department is risk management and from the perspective of leadership a damage control approach,” Ferguson said.
Image. HighwireGames/Victura ... Image ... “When we watch a movie or read a book, we are limited to a very specific lens. A video game can do a much better job of broadening the perspective. Players are in control of the experience, and they can fail at it.
The camera can control the perspective that adds to his images’ depth, and while shallow depth of field is challenging, that’s what gives Scheer’s images a unique, throwback feel all its own.
– film days, perspective-control lenses or cameras with tilt and shift mechanisms were popular to correct perspective ... For years, I used a 28 mmPerspectiveControl Nikkor lens when photographing architectural subjects on film.
Lincoln Journal Star
23 Sep 2022
Lincoln Journal Star
23 Sep 2022