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CCTV cameras are made in a variety of types and for a wide range of uses. Complicating the selection of cameras more are the variety of technologies within each category type.
In order to understand the range of cameras available to the general market, and useful for ordinary consumer applications, this article is divided into three sections: camera types, lenses, and technology types.
Electronic video images may show a varying degree of detail. That is evidenced by the contrast between standard television broadcasts and those called High Definition (HD). Television was originally displayed on a Cathode Ray Tube or CRT (also called the “picture tube”). The CRT reproduced the image on its screen by shooting an electron beam horizontally at the rate of about 60 times per second. To a large degree, the number of horizontal lines determined how detailed the video appeared. The more lines, the smaller the lines, the greater the detail of the picture.
If you are looking for a security and monitoring system that can be viewed away from the site where it is being used you should consider using a CCTV camera remotely monitored. These systems are useful for monitoring the home from work, the business while at home, or for any monitoring application where the user is not in the same location as the camera.
A CCTV camera multiplexer is an electronic unit that is able to combine the video transmission signals from more than one camera into one single channel or transmission. These units are often used where processors, VCRs, Digital Video Recorders or DVRs, and monitors can only handle one input. The multiplexer, also known as a Mux, in essence reduces the multiple camera feeds by creating one output that combines all of the inputs to the multiplexer.
A CCTV or closed circuit television outdoor camera can provide security and surveillance outside of buildings and in open areas. CCTV outdoor cameras can be purchased with several highly specialized features for use in all sorts of applications from businesses to residences; and thanks to current technological advancements, these cameras including their optional features, can be purchased at affordable prices making them a desirable addition to any security system.
Thanks to relatively recent technological advances in electronic imaging, night vision security cameras are becoming one of the most popular types of security/surveillance cameras for businesses and residences alike. Before purchasing a night vision security camera it’s important that you are familiar with some of the terminology and functions associated with this specialized type of security system.