With so many choices of cameras on the market, it is very easy for a consumer to get overwhelmed and confused in choosing the right security camera for their needs. Whether you buy a security camera of a home, business or government application, there are certain basic things that every buyer should know to make an informed decision. In this article we will cover the first of a series of topics to help educate all those looking to purchase a surveillance system. The main theme of part of this series of articles is the resolution of the camera. It is very important to understand what it means when you shop for a surveillance camera resolution. CCTV (closed circuit television) cameras with a resolution of 330 TVL wide (TVL) to 600 TVL. For maximum color resolution CCTV cameras with 560 lines, but you can get black and white CCTV camera 600 TVL. IP surveillance cameras are now available in a much higher resolution (up to 5 megapixel resolution). What does it mean when you plan a system? In the U.S., televising regular (non HD) displays 480 lines of resolution, so it is possible to buy cameras that can capture less than the HDTV resolution. It is obvious that the higher the resolution you choose, the more detail you see in the video surveillance. High Definition Television (HDTV) displays or 1080 or 720 lines of resolution depending on the channel and the type of HDTV you have. To obtain higher resolution by surveillance cameras, the only choice is based megapixel IP cameras, which connect over an IP network instead of a closed circuit. Megapixel IP cameras are much more expensive than CCTV cameras. Prices for a range of quality of CCTV from $ 69 – $ 499. megapixel cameras range from $ 599 – 5000 $. For applications that require high-end cameras can capture megapixel video surveillance to more than double the resolution of HDTV. In my experience, some people who are buying a surveillance system have unrealistic expectations of what a surveillance camera can capture (in particular a closed circuit camera). Go to more details on the size and types of lenses in the next article in this series, but briefly it is now closely linked to the resolution in the planning system. For this example, we use a 3. Lens 6 mm giving a field of 90 degrees out of camera view. Some people think that if you take a camera with 3480. 6 mm lens that you’ll be able to get a clear picture is an object that is 20 meters and an object that is 80 meters. This is very far from the truth. While 3. 6 mm lens easily take the subject in detail at 20 feet, can not pick it up to 80 meters with the same 3. 6 mm lens. To obtain the object at a distance too, you should use a broader purpose that makes the image larger or use a megapixel camera that allows the user to a digital zoom without image distortion. The digital zoom is possible with high-end camera megapixel, but not with normal resolution cameras. This will lead us in the next article in this series will be to understand and choose the right lens.

This is a preview of Tips on choosing the right surveillance camera – Part 1. Read the full post