Different Types of CCTV Cameras
Whether it is for securing homes or commercial establishments CCTV’s surveillance systems are today available in variety of specifications; each designed to excel in a particular type of surveillance environment. Before making a purchase it is essential to be aware of the different types of CCTV camera options available on the market to ensure the right application and maximize performance. All of these devices are available in analog and digital variants as well.
What to consider before making a purchase?
Choice of the right CCTV camera (hardware) based on their primary use and its positioning will determine the quality of surveillance that a system can deliver. The lens of the device is also critical in receiving quality footage. Devices are available in a variety of lens types, depending on the functionality/ type of surveillance and price points, . In addition to lens, the choice of sensor when CMOS (Complementary Metal Oxide Semiconductor) or CCD cameras ( Charged Coupled Device) as also vital in capturing quality footage. Lastly, the resolution of these devices measured in pixels will determine the resolution of the output. High resolution is available upto 700 TVL and the average rage being 300-550 TVL.
What are the different types of cameras?
Each built to excel in a particular environment, a number of options are today available on the market, all dependent on the goals that a surveillance system is trying to achieve.
Dome cameras are the most common type of cameras used for indoor surveillance. The dome shape of these devices makes it easy to mount on to a ceiling and is also vandal proof. The dark colored dome of the device camouflages the direction which the camera points at making it difficult for onlookers to determine the direction the camera faces, a strong deterrent that creates uncertainty.
Bullet cameras are identified by their long and cylindrical shape and are commonly used in outdoor environments. Bullet cameras have capabilities in capturing long distance footage and also wide angle capture. To protect these devices from harsh weather conditions and dust these cameras are cased in a protective mounting bracket. Bullet cameras are commonly equipped with fixed or varifocal lenses. Bullet cameras can also be used indoors and also capable in capturing footage in high resolution.
C-mount cameras are built with the ability to change lenses whenever needed therefore devices can easily be made to adapt to changing surveillance needs and environments. Additionally, an average CCTV lens is equipped to cover distances of upto 30-40 feet, C- mount cameras on the other hand are designed to capture footage of distances beyond 40 feet, making them excellent for outdoor surveillance. These devices are bulky which makes them noticeable when mounted, which also can be a deterrent in a few cases.
Besides normal capture, these devices have the capability to transmit quality footage footage in low or even poorly lit environments as well. Day/night cameras are equipped with infrared illuminators and sensitive imaging chips that enable low-light capturing. These devices can also capture footage in color as well as black and white. Day/night cameras are available in a number of sizes and also have infrared capability.
PTZ or Pan/tilt/zoom cameras are devices that can be panned left or right, tilted- horizontally or vertically and also have the ability to zoom in closer. PTZ cameras are often recommended in environments where a guard is present or when a environment is monitored by a surveillance specialist operating the security system.