What to look out for when buying home security cameras
Posted: Aug 27, 2015
Setting up a home surveillance system should not be taken lightly and is not an easy thing. The well being of your family, loved ones, and property greatly depends on whether or not they are secure. Deploying a surveillance system is a significant investment to not only your property but also the people you care about.
The key to buying a good home security camera is not just buying the most expensive camera. The first thing you should do is to determine why you are purchasing the camera. Different models and types of cameras are suited for a specific need. Knowing the type of camera you need for your home not only saves you on money but also speeds up the process of buying the camera. In this article we are going to outline all the core factors that you need to consider before buying a home security camera.
The camera sensor.
The two main things to look at when determining the sensor you need are the sensor size and the sensor type.There are different types of home security camera sensors. Most home security cameras have either CMOS or CCD sensors. CMOS sensors are usually less expensive and consume less power compared to the CCD sensors but do not produce clear images such as the CMOS sensors. CCD sensors are also less sensitive.This means that CMOS(Complementary metal–oxide–semiconductor) based sensors require more signal processing to produce a clear image.
The other core factor to consider when choosing a sensor is the size. The smaller the sensor- the low the quality the image and vice versa. Majority of home security cameras come either with the ¼ inch which or the? inch. Larger sensors not only gather more light, but also give the DSP more data to work with.
The camera resolution.
This might seem as an obvious factor but it's very crucial that you get the resolution right. An example of a home security camera specification is the number of horizontal lines of television resolution it can produce. This output resolution largely depends on the lens and the sensor. The greater the resolution the better.Buy a home security camera with a resolution that can clearly display the best image the camera can produce. Anything above is a waste of resources.
The camera lens.
The main purpose of the lens is to gather light for the sensor. Everything that is displayed on the camera comes throughout the lens of the camera. The camera lens determines the distance at which an object can be identified or a face can be recognized as the lens controls the focus. A higher output resolution is not as important as a good lens. This is because the output displayed on the resolution is determined by the input i.e what the sensor and lens can provide.
As a buyer, also consider looking at zoom lenses. Some home security cameras have optical zoom lenses or the digital zoom lens. Optical zoom lens are preferred. The disadvantage of a digital zoom lens is that it provides only information that was in the original object while optical zoom lenses add new information to objects as it adjusts which light reaches the sensor.
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Aaron Roy is an expert article writer in his field. He has written many articles related to cameras, outdoor & video security. Currently he is writing article on home security cameras.