Camcorders are portable electronic devices for recording audio and video through a built-in CD drive. Differ from previous units in which the recording and audio devices were separate. Today, a camcorder is a combination video camera and a VCR.
Previously used companies like Sony, JVC and Kodak, etc., analog video tapes. Since 1990 the digital tape came into use, and three years later, were replaced by optical storage, tape drives, hard disk and solid state memory. Video cameras do not use magnetic tapes as "tape-less", while the use of two different media such as hard drives and memory cards, camera called a "hybrid.
Technological progress has the great cameras mounted on cars specifically for the cameras and portable recorders for transmission of images of small size. This transition began in 1982 when JVC and Sony has released the first professional camcorder. The Betacam, designed by Sony, slowly gained popularity and became the standard device for both SNG and editing video. This was followed by Betamax in 1983 – the first camera to use. At this time, were too bulky and usually based on the user `s shoulder during recording. Even today most camcorders are designed for very few users have the right ergonomic ambidextrous.
Both JVC and Sony has started to improve the quality of camcorders, which in 1990 led to the development of digital devices. These boxes were still smaller than the average 8 millimeters allowing further reduction in the size of the assembly of the conveyor. The digital variety further improved the quality audio and video through the best analog camcorders. With the advent of digital models, the market will be significantly increased further facilitated by its price and size reduction. Today, a device like the palm and is sold at a retail price of less than $ 150.
Cameras consists of three basic components: lens, imager and recorder. The objective collects light and focuses exclusively on the imager. The imager is the eye of the camera, the captured video images into electrical signals converted. The recorder encodes the video signals into storable form. The professional lens offers the control of all major optical functions such as aperture, shutter speed, focus, etc. The recorder function is responsible for writing the video signal on a recording medium (video tape) responsible.
Camcorders are normally classified by their storage medium. The highest quality digital format, such as Betacam and Mini-DV, etc., suffer from loss of production slightly during recording, dubbing and editing. For analog recordings are noise and issues related to the bandwidth of the cables, amplifiers and mixers have a problem with digital connections such problems are minimized.
However, problems continue to affect the storage in both analog and digital varieties. Both are vulnerable to deterioration over time formed the band. This is even worse in digital images, in which large database is permanently deleted because of degradation and restoration is very expensive. One advantage of Analog Devices, which records, even after the media can be used, where data is stored, suffers deterioration.
Consumer camcorders emphasize the basic properties such as ease of use, portability, price and service technician. These units offer a wide range of I / O, but none of the other menu settings, video recording, gain controls and management of the sound level. For beginners, basic recording and playback facilities are emphasized. Today is a personal computer, with a modest configuration, digital video editing is available with the software available on the market.
Camcorders have a plethora of applications in the electronic media, ranging from electronic news organizations to TV / current affair production. They are for the first video footage in locations away from the infrastructure for the distribution of inestimable value. Events scheduled time together, how to use the official press conferences, video cameras widely. They are also used for covering personal events such as weddings, birthdays and other special occasions for the family.
Even in politics, is the camera to film events that you used on the subject. Protesters from various fields such as animal rights, taxation, anti-globalization, war and the police, use camcorders to record films and events of this type, which have great social and historical. Even some judicial decisions are exposed to video recordings of these devices. They are also used in low-budget films, ad shoots, television shows and movies to make academic, etc.
This article can also be accessed in portuguese language from the Article section of page www.polomercantil.com.br/filmadora.php
Roberto Sedycias works as IT consultant for www.PoloMercantil.com.br
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