One names video camera an electronic apparatus portable allowing to record Images and his on the same support. It thus combines the functions of a junkie ruffle Vidéo with those of a magnéto' scope' , from where its name, Mot-valise of these two terms. It is about a technological change compared to the former generation which called upon two distinct apparatuses.
Types of video cameras
One can distinguish the video cameras Numérique S from the video cameras Analogique S.- the analogical video cameras record information in analogical form like the Magnétoscope S in the same way standard (VHS, Video 8, Betamax)
- the numerical video cameras record information under compressed digital form (format FD,…)
In addition to the Analogical distinction /Numerical, the video cameras can be arranged in various ranges according to the public ones for which they are intended:
- General public (cycle of renewal of the products: 6 to 12 months)
- Semi-pro (cycle of renewal of the products: 2 to 4 years)
- Professional (cycle of renewal of the products: 5 years and more)
Certain numerical video cameras equipped with the function " path through" allow the direct acquisition of films the format STAKE since an analogical video camera on a computer (for a quality higher than the majority of the charts of acquisition general public).
Supports and formats of recording
The sequences recorded by a numerical video camera can be very easily transferred towards a Ordinateur equipped with a catch IEEE 1394 (also called FireWire or I.Link), which opens the way with the video Montage by using a suitable program (which is sometimes sold at the same time as the video camera). The transfer is carried out at the speed of 1x, which means that sequence of X minutes will require X minutes exactly to pass from one apparatus to the other.
Certain models are equipped with a catch USB, and are recognized by the computers like external Hard drive.
There exist several supports of recording and as many formats. To consult the page Video to have more information. The most recent video cameras are also able to record on supports more innovating such as memories flash or hard drives (in MPEG, MPEG-2 or MPEG-4) or directly on a DVD (either DVD-RAM, or DVD-R) in MPEG-2.
The most current formats of video camera are the following:
To note that these apparatuses are generally without wire contrary to the Webcam S.
History
- At the end of the Seventies appeared the first formed portable whole of a portable video tape recorder and a camera. Beginning of the video amateur.
- In 1983 Sony with developped at the point and markets the first video camera in the world: the Betamovie with the format Betamax it ceased being produced in 1986, these 1st models of video camera did nothing but record, they could not read the cassette.
- In 1985, JVC markets the video cameras with the format VHS, which as of their beginning had the capacity to read the cassette recorded in the video camera.
- In 1985, Sony and other large manufacturers, develop a standard of smaller video camera together, using cassettes of small size, container of the magnetic band of 8mm of width (against 12,7 mm for the VHS and VHS-C) the Video 8
- JVC counteracted by developing cassettes VHS of small size, VHS-C and of the same thickness and as one could read in a normal video tape recorder VHS (by means of an adapter).
- Improvement of the Video 8 by the Hi8, then a few years later the DIGITAL 8.
- In years 90-95 the first numerical video cameras appeared.
See too
Related articles
- Balance of the white
- Cinema and video amateurs
- Video tape recorder
- Camera
- Numeric camera
External bonds
- Infoachat - Video cameras: Purchasing guide, opinions consuming, good deals.
- Webmag on the video cameras
- Collection of video cameras and video tape recorders of before 1980
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