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A field of view. In first person video games, the field of view or field of vision (abbreviated FOV) is the extent of the observable game world that is seen on the display at any given moment. It is typically measured as an angle, although whether this angle is the horizontal, vertical, or diagonal component of the field of view varies from ...
For cameras that can only focus on one object distance at a time, depth of field is the distance between the nearest and the farthest objects that are in acceptably sharp focus in the image. [ 1] ". Acceptably sharp focus" is defined using a property called the "circle of confusion". The depth of field can be determined by focal length ...
Webcam. A Logitech-branded webcam attached to a laptop. A webcam is a video camera which is designed to record or stream to a computer or computer network. They are primarily used in video telephony, live streaming and social media, and security.
The lenses attach to the camera using a lens mount, which contains mechanical linkages and often also electrical contacts between the lens and camera body. The lens mount design is an important issue for compatibility between cameras and lenses. There is no universal standard for lens mounts, and each major camera maker typically uses its own ...
A zoom lens is a system of camera lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens ( prime lens ). A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its focal length changes. [1] Most consumer zoom lenses do not maintain ...
Parallax is an angle subtended by a line on a point. In the upper diagram, the Earth in its orbit sweeps the parallax angle subtended on the Sun. The lower diagram shows an equal angle swept by the Sun in a geostatic model. A similar diagram can be drawn for a star except that the angle of parallax would be minuscule.
Lens speed. A fast prime (fixed focal length) lens, the Canon 50mm f/ 1.4 (left), and a slower zoom lens, the Canon 18–55mm f/ 3.5–5.6 (right); this lens is faster at 18mm than it is at 55mm. Lens speed is the maximum aperture diameter, or minimum f-number, of a photographic lens. A lens with a larger than average maximum aperture (that is ...
PlayStation Camera. The PlayStation Camera is a motion sensor and camera accessory for the PlayStation 4 and PlayStation 5, developed by Sony Computer Entertainment. It is the successor to the PlayStation Eye for the PlayStation 3, which was released in 2007. It is also the motion sensor used to track the PlayStation VR virtual reality headset .
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