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An outdoor security camera, like all cameras, uses an image sensor made up of many pixels which registers the amount of light and converts it to the corresponding number of electrons. The brighter the light, the more electrons are generated. There are two main technologies used for the camera’s image sensor.

The CCD, or charge-coupled device, and the CMOS, or complementary metal-oxide semiconductor are often viewed as rival technologies. However, each actually has its own strengths and weaknesses so that one is more appropriate than the other depending on the application.

The CCD image sensors were developed in cameras specifically for the purpose that they serve today. Meanwhile, CMOS sensors were originally adaptations of standard technology already in use for other applications such as the memory chip of computers. However, as technology advances CMOS sensors becoming more suited for cameras and the image quality is improving at a very impressive rate.

The main benefit of a CCD sensor over a CMOS sensor is the higher light sensitivity. Being more sensitive to light means it can produce a better image in conditions where lighting is low.

The two downsides to the CCD sensors are really the true advantages to CMOS sensors. The CCDs make the cameras more expensive since they are harder to put into a camera and an equivalent sensor uses almost one hundred times more power than a CMOS sensor.

In contrast, the CMOS sensors are quickly over taking the areas that CCD sensors once ruled in terms of image quality. CMOS based cameras always had the edge when it came to cost. It is much easier to build a camera around a CMOS sensor.

The CMOS sensors allow for much more integration possibilities and functions than the CCD could. It also has a faster readout which is important when you get into megapixels and require less energy and a smaller system size. You will find megapixel CMOS cameras much more than a megapixel CCD sensor simply because of the cost differentiation.

When it comes to megapixel sensors in cameras, the sensors themselves are about the same size or only slightly larger than traditional VGA sensors. This means that the size of each pixel is smaller. So while the megapixel camera can provide higher resolution and greater detail, it is less light sensitive since the pixel size is smaller and light reflected from an object is spread to more pixels.

Your outdoor security camera uses a light sensor to create an image from the light entering through the lens. The light sensor is made up of many pixels which determine how much light is coming through and generates the corresponding number of electrons. Brighter lights generate more electrons per pixel. When it comes to image sensor technology, there are two main types.

The first is known as the CCD sensor which is an acronym for charge-coupled device, and the second is the CMOS sensor which is spelled out as the complementary metal-oxide semiconductor. Even though these two types are viewed a rivals, each has its own strengths and weaknesses so one would be better than the other in different applications.

The CCD image sensors were developed in cameras specifically for the purpose that they serve today. Meanwhile, CMOS sensors were originally adaptations of standard technology already in use for other applications such as the memory chip of computers. However, as technology advances CMOS sensors becoming more suited for cameras and the image quality is improving at a very impressive rate.

CCD sensors are still slightly better in light sensitivity and produce cleaner images than CMOS sensors. Because of higher light sensitivity, the CCD produces sharper images in low light conditions than CMOS sensors.

The two downsides to the CCD sensors are really the true advantages to CMOS sensors. The CCDs make the cameras more expensive since they are harder to put into a camera and an equivalent sensor uses almost one hundred times more power than a CMOS sensor.

In contrast, the CMOS sensors are quickly over taking the areas that CCD sensors once ruled in terms of image quality. CMOS based cameras always had the edge when it came to cost. It is much easier to build a camera around a CMOS sensor.

The CMOS sensors allow for much more integration possibilities and functions than the CCD could. It also has a faster readout which is important when you get into megapixels and require less energy and a smaller system size. You will find megapixel CMOS cameras much more than a megapixel CCD sensor simply because of the cost differentiation.

Megapixel sensors are sensors that contain pixels that number in the millions. Since megapixel sensors are commonly made to be the same size as traditional VGA sensors, each pixel is smaller. This allows the camera to capture more detail and higher resolution but also becomes less light sensitive since pixels are smaller in size making it a suboptimal choice for low light conditions.

A simple way to enhance your home’s security is to install some lighting. There are three different techniques to use lighting for security purposes. They are dusk to dawn lighting, motion activated lighting, and a combination hi/lo lighting.

In the first technique, the concept is very basic. A well lit area will discourage would-be criminals because they no longer have the security of hiding in the dark. It is a basic play on psychology that people will be less likely to break the law when they feel they might be watched.

The dusk-to-dawn technique uses a photocell that detects light levels. When the lighting in the area gets too low, the lights are automatically switched on and stay on until the lighting levels change.

The problem with this technique is the relatively high costs compared to the other two lighting techniques. The electricity costs can add up when the lights are on all night long every single night and lamps burn out sooner meaning replacement costs will also add up. It’s also less effective when it comes to alerting neighbors because the lights always look the same.

The motion activated lighting is one of the more popular techniques. It is a very effect deterrent and since most of the time the lights will stay off and only go on as needed the energy costs as well as replacement lamps are much lower than the previous technique. Imagine the flood lights coming on while the would-be perpetrator is still 30 yards from the point of entry.

The last technique is a combination of the first two. The system is set to keep the lamps on at approximately twenty percent of full wattage from dusk to dawn. Then there is the motion sensing part that turns on the lights to full wattage when the sensors detect some motion.

Its costs is not quite as low as the motion activated system but not as expensive as leaving the lights on all night. It also provides a nice glow all night which is comforting for most people.

When it comes to protecting your home and your family, security lighting does a good job as a simple yet effective prevention measure against intrusions or other criminal activity on or to your property. It will definitely aid in the detection of intruders, to deter intruders, or in some cases simply to increase the feeling of safety.

There are two types of CCTV cameras. You can choose from CMOS or CCD which are differentiated by the image sensor. Cameras that are CMOS based are cheaper of the two but do not produce the same quality of image in terms of sharpness and clarity as the CCD camera delivers.

To determine the best security camera for your needs, you must first determine what your needs are. A camera that can single out faces in an outdoor crowd on a cloudy day is very different from a camera that is used to monitor general activity inside an office lobby.

There is a difference in cameras designed for indoor versus outdoor use. There are additional durability standards that the camera would need to ensure it survives the harsh conditions, unlike an indoor security camera.

The overall size of your security system, including the number of cameras you will need, will determine your spending ceiling. If it was just one camera you might spend a little extra for extra features, for example higher resolution. But across a 20 camera system that little extra you spend per camera will definitely add up to some serious money. Your budget will directly impact your buying decision and needs to be sufficient for the right cameras to adequately serve your needs.

One of most important consideration is lighting of the area you want to monitor. If you plan on installing an outdoor security camera to protect your detached car garage from thieves but buy a high quality day camera that isn’t designed for low light environments, your video feed will be different shades of black frames.

In low light settings, black and white cameras are the best. They have lower light requirements to deliver image quality than regular colored cameras. There are also cameras that can sense the lighting levels of the enirvonment and transform from a day camera to a night camera.

For true low light recording there are dedicated nigh vision cameras available. Look for lower LUX rating when the environment the camera will be used in will have less light. A lower LUX rating means less light is required for the camera to capture an image. A camera with a rating of 0 means it works in complete darkness.

A cameras resolution measures the sharpness of the image the camera will capture; higher resolution, higher quality image. Entry level cameras start at resolutions of 330 lines upward to 400 lines in higher quality cameras.

When it comes to recording the video feed from the camera, most people will do with the DVR, which stands for digital video recorder. In more advanced monitoring systems there are controls for panning and zooming the camera in real-time to get closeups or follow a particular object.