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- Video_camera abstract "A video camera is a camera used for electronic motion picture acquisition, initially developed by the television industry but now common in other applications as well. The earliest video cameras were those of John Logie Baird, based on the electromechanical Nipkow disk and used by the BBC in experimental broadcasts through the 1930s. All-electronic designs based on the cathode ray tube, such as Vladimir Zworykin's Iconoscope and Philo T. Farnsworth's Image dissector, supplanted the Baird system by the 1940s and remained in wide use until the 1980s, when cameras based on solid-state image sensors such as CCDs (and later CMOS active pixel sensors) eliminated common problems with tube technologies such as image burn-in and made digital video workflow practical.Video cameras are used primarily in two modes. The first, characteristic of much early broadcasting, is live television, where the camera feeds real time images directly to a screen for immediate observation. A few cameras still serve live television production, but most live connections are for security, military/tactical, and industrial operations where surreptitious or remote viewing is required. In the second mode the images are recorded to a storage device for archiving or further processing; for many years, videotape was the primary format used for this purpose, but optical disc media, hard disk, and flash memory in tapeless camcorders are all increasingly used. Recorded video is used in television and film production, and more often surveillance and monitoring tasks where unattended recording of a situation is required for later analysis.Modern video cameras have numerous designs and uses, not all of which resemble the early television cameras. Professional video cameras, such as those used in television production and sometimes filmmaking in digital cinema; these may be television studio-based or mobile in the case of an electronic field production (EFP). Such cameras generally offer extremely fine-grained manual control for the camera operator, often to the exclusion of automated operation. Usually uses 3 sensors to record separate of Red, Green and Blue. Camcorders, which combine a camera and a VCR or other recording device in one unit; these are mobile, and are widely used for television production, home movies, electronic news gathering (ENG) (including citizen journalism), and similar applications. Some digital ones are Pocket video cameras. Closed-circuit television (CCTV) generally use pan tilt zoom cameras (PTZ), for security, surveillance, and/or monitoring purposes. Such cameras are designed to be small, easily hidden, and able to operate unattended; those used in industrial or scientific settings are often meant for use in environments that are normally inaccessible or uncomfortable for humans, and are therefore hardened for such hostile environments (e.g. radiation, high heat, or toxic chemical exposure). Webcams are video cameras which stream a live video feed to a computer. Larger video cameras (especially camcorders and CCTV cameras) can be similarly used, though they may need an analog-to-digital converter in order to store the output on a computer or digital video recorder or send it to a wider network. Most 21st-century video cameras are digital cameras which convert the signal directly to a digital output; such cameras are often small, even smaller than CCTV security cameras, and are often used as webcams or optimized for still-camera use. The majority are incorporated directly into computer or communications hardware, particularly mobile phones, though analog video equipment remains in use. Special systems, like those used for scientific research, e.g. on board a satellite or a spaceprobe, or in artificial intelligence and robotics research. Such cameras are often tuned for non-visible radiation for Infrared photography (for night vision and heat sensing) or X-ray (for medical and video astronomy use).".
- Video_camera thumbnail Sonyhdrfx1.jpg?width=300.
- Video_camera wikiPageID "472645".
- Video_camera wikiPageRevisionID "601687988".
- Video_camera hasPhotoCollection Video_camera.
- Video_camera subject Category:Cameras.
- Video_camera subject Category:Optical_devices.
- Video_camera subject Category:Recording.
- Video_camera type Artifact100021939.
- Video_camera type Camera102942699.
- Video_camera type Cameras.
- Video_camera type Device103183080.
- Video_camera type Equipment103294048.
- Video_camera type Instrumentality103575240.
- Video_camera type Object100002684.
- Video_camera type OpticalDevice103851341.
- Video_camera type OpticalDevices.
- Video_camera type PhotographicEquipment103926148.
- Video_camera type PhysicalEntity100001930.
- Video_camera type Whole100003553.
- Video_camera comment "A video camera is a camera used for electronic motion picture acquisition, initially developed by the television industry but now common in other applications as well. The earliest video cameras were those of John Logie Baird, based on the electromechanical Nipkow disk and used by the BBC in experimental broadcasts through the 1930s. All-electronic designs based on the cathode ray tube, such as Vladimir Zworykin's Iconoscope and Philo T.".
- Video_camera label "Cámara de vídeo".
- Video_camera label "Câmera de vídeo".
- Video_camera label "Kamera wideo".
- Video_camera label "Telecamera".
- Video_camera label "Video camera".
- Video_camera label "Videokamera".
- Video_camera label "Видеокамера".
- Video_camera label "كاميرا فيديو".
- Video_camera label "ビデオカメラ".
- Video_camera sameAs Videokamera.
- Video_camera sameAs Cámara_de_vídeo.
- Video_camera sameAs Kamera_video.
- Video_camera sameAs Telecamera.
- Video_camera sameAs ビデオカメラ.
- Video_camera sameAs 비디오_카메라.
- Video_camera sameAs Kamera_wideo.
- Video_camera sameAs Câmera_de_vídeo.
- Video_camera sameAs m.025t6n0.
- Video_camera sameAs Q313614.
- Video_camera sameAs Q313614.
- Video_camera sameAs Video_camera.
- Video_camera wasDerivedFrom Video_camera?oldid=601687988.
- Video_camera depiction Sonyhdrfx1.jpg.
- Video_camera isPrimaryTopicOf Video_camera.