The Different Types of Security Cameras
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Richard Armen
Apr 5, 2013, 9:30:26 AM4/5/13
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Article Title: The Different Types of Security Cameras
Author: Richard Armen
Word Count: 697
Article URL: http://www.isnare.com/?aid=507446&ca=Computers+and+Technology
Format: 64cpl
Contact The Author: http://www.isnare.com/eta.php?aid=507446
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When it comes to security cameras, buyers are often amazed at the wide variety of possibilities. In fact, it would be virtually impossible to describe all of the different styles in one short article. Here are a few of the most frequently used security camera types, including those that are most popular for home and small business security uses:
In addition to the various technologies, there are often a range of styles. Hidden cameras are among the most popular. A hidden camera is designed to blend into the surroundings, so that those watched don't realize that a camera is there. This is a great option for catching children misbehaving, nannies mistreating the kids, or employees stealing. The downside is that because the camera is not visible, it will not deter theft or other activities, but merely record their presence. Other security camera styles include dome cameras designed to be mounted on the ceiling.
Before the various types of security cameras are discussed, it may be useful to gain an understanding of camera quality. Image quality is measured by resolution, stated as a number of TV lines. A standard-resolution camera produces 350-380 lines of the image on a TV screen. This is fairly sharp, although to catch details, 400 or more TV lines is usually considered good resolution, while over 500 TV lines is high resolution.
Although you may assume that black and white cameras use older technologies and produce low-quality images when compared to cameras that produce a color image, this is not always the case. A black and white camera provides greater resolution and better sensitivity in low-light situations. On the other hand, surveillance with a color camera provides a more realistic and natural image.
The type of lens also affects the image produced. A professional-grade security camera typically has a box-type body, with the ability to change lens type and size. Interchangeable lenses allow this style of camera to monitor activities from nearly any distance. Although mainly found indoors, a waterproof body allows for outdoor use. This style of camera is very flexible in terms of potential uses, and is most frequently found installed by professionals in large businesses.
Bullet cameras are a style that is more popular for medium or small businesses. As the name suggests, the body of this camera is bullet-shaped. These cameras tend to be waterproof. Some also have IR LED light technology, making it possible to watch activities in completely dark environments. This feature usually works at distances under 50 feet, such as the interior of a business or home. Simple to install, these are a popular choice for do-it-yourself camera installation when monitoring activities within about 25 feet of the camera with the standard 3.6mm lens. For larger rooms, a 6mm lens may be required to allow the camera to record activities occurring farther away.
Board cameras have a fixed lens, and may be packaged in a small case, producing a hidden camera, or in a dome (producing a ceiling dome camera). The lens type allows for a range of uses, from a pinhole style used in hidden cameras to a wide-angle lens ideal for ceiling-mounted use. These cameras typically have a fixed mount, meaning that they do not move from side to side. This is a low-cost option for homes and businesses.
If you need a camera that can view in multiple directions, look for a PTZ, or pan-tilt-zoom camera. This camera is most frequently chosen in situations where someone is actively monitoring the camera, although it can be set to automatically rotate. These cameras can view and zoom in all directions. PTZ cameras include optional applications, such as facial recognition or license-plate recognition, depending upon the intended use.
In addition to real surveillance cameras, many homes and businesses opt for a dummy camera. This type of camera uses no technology at all. This lookalike is a cheap alternative to a real surveillance camera. Its purpose is to provide a visual deterrent by letting people know their activities are being monitored. This style is very popular around homes and businesses to prevent robberies, theft, and vandalism.
About The Author: http://www.resistattack.com has a full range of handcuffs both for families and security forces. Also check for current specials on our pool alarm
Please use the HTML version of this article at:
http://www.isnare.com/html.php?aid=507446
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Message delivered directly to members of the group:
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Please consider this free-reprint article written by:
Richard Armen
*****************************
IMPORTANT - Publication/Reprint Terms
- You have permission to publish this article electronically in free-only publications such as a website or an ezine as long as the bylines are included.
- You are not allowed to use this article for commercial purposes. The article should only be reprinted in a publicly accessible website and not in a members-only commercial site.
- You are not allowed to post/reprint this article in any sites/publications that contains or supports hate, violence, porn and warez or any indecent and illegal sites/publications.
- You are not allowed to use this article in UCE (Unsolicited Commercial Email) or SPAM. This article MUST be distributed in an opt-in email list only.
- If you distribute this article in an ezine or newsletter, we ask that you send a copy of the newsletter or ezine that contains the article to http://www.isnare.com/eta.php?aid=507446
- If you post this article in a website/forum/blog, ALL links MUST be set to hyperlinks and we ask that you send a copy of the URL where the article is posted to http://www.isnare.com/eta.php?aid=507446
- We request that you ask permission from the author if you want to publish this article in print.
The role of iSnare.com is only to distribute this article as part of its Article Distribution feature ( http://www.isnare.com/distribution.php ). iSnare.com does NOT own this article, please respect the author's copyright and this publication/reprint terms. If you do not agree to any of these terms, please do not reprint or publish this article.
*****************************
Article Title: The Different Types of Security Cameras
Author: Richard Armen
Word Count: 697
Article URL: http://www.isnare.com/?aid=507446&ca=Computers+and+Technology
Format: 64cpl
Contact The Author: http://www.isnare.com/eta.php?aid=507446
Easy Publish Tool: http://www.isnare.com/html.php?aid=507446
*********************** ARTICLE START ***********************
When it comes to security cameras, buyers are often amazed at the wide variety of possibilities. In fact, it would be virtually impossible to describe all of the different styles in one short article. Here are a few of the most frequently used security camera types, including those that are most popular for home and small business security uses:
In addition to the various technologies, there are often a range of styles. Hidden cameras are among the most popular. A hidden camera is designed to blend into the surroundings, so that those watched don't realize that a camera is there. This is a great option for catching children misbehaving, nannies mistreating the kids, or employees stealing. The downside is that because the camera is not visible, it will not deter theft or other activities, but merely record their presence. Other security camera styles include dome cameras designed to be mounted on the ceiling.
Before the various types of security cameras are discussed, it may be useful to gain an understanding of camera quality. Image quality is measured by resolution, stated as a number of TV lines. A standard-resolution camera produces 350-380 lines of the image on a TV screen. This is fairly sharp, although to catch details, 400 or more TV lines is usually considered good resolution, while over 500 TV lines is high resolution.
Although you may assume that black and white cameras use older technologies and produce low-quality images when compared to cameras that produce a color image, this is not always the case. A black and white camera provides greater resolution and better sensitivity in low-light situations. On the other hand, surveillance with a color camera provides a more realistic and natural image.
The type of lens also affects the image produced. A professional-grade security camera typically has a box-type body, with the ability to change lens type and size. Interchangeable lenses allow this style of camera to monitor activities from nearly any distance. Although mainly found indoors, a waterproof body allows for outdoor use. This style of camera is very flexible in terms of potential uses, and is most frequently found installed by professionals in large businesses.
Bullet cameras are a style that is more popular for medium or small businesses. As the name suggests, the body of this camera is bullet-shaped. These cameras tend to be waterproof. Some also have IR LED light technology, making it possible to watch activities in completely dark environments. This feature usually works at distances under 50 feet, such as the interior of a business or home. Simple to install, these are a popular choice for do-it-yourself camera installation when monitoring activities within about 25 feet of the camera with the standard 3.6mm lens. For larger rooms, a 6mm lens may be required to allow the camera to record activities occurring farther away.
Board cameras have a fixed lens, and may be packaged in a small case, producing a hidden camera, or in a dome (producing a ceiling dome camera). The lens type allows for a range of uses, from a pinhole style used in hidden cameras to a wide-angle lens ideal for ceiling-mounted use. These cameras typically have a fixed mount, meaning that they do not move from side to side. This is a low-cost option for homes and businesses.
If you need a camera that can view in multiple directions, look for a PTZ, or pan-tilt-zoom camera. This camera is most frequently chosen in situations where someone is actively monitoring the camera, although it can be set to automatically rotate. These cameras can view and zoom in all directions. PTZ cameras include optional applications, such as facial recognition or license-plate recognition, depending upon the intended use.
In addition to real surveillance cameras, many homes and businesses opt for a dummy camera. This type of camera uses no technology at all. This lookalike is a cheap alternative to a real surveillance camera. Its purpose is to provide a visual deterrent by letting people know their activities are being monitored. This style is very popular around homes and businesses to prevent robberies, theft, and vandalism.
About The Author: http://www.resistattack.com has a full range of handcuffs both for families and security forces. Also check for current specials on our pool alarm
Please use the HTML version of this article at:
http://www.isnare.com/html.php?aid=507446
*********************** ARTICLE END ***********************
- To distribute your articles go to http://www.isnare.com/distribution.php
- For more free-reprint articles go to http://www.isnare.com
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