Many factors go into choosing the right CCTV security camera for your needs. However, there are a few simple parameters that you should consider when making your decision.
The first thing to consider is the area you want to monitor. This will help determine the best type of camera and network to use.
Resolution
The resolution of a CCTV security camera is essential to consider, as this determines the quality of the image captured. You want a security camera that can capture clear images day and night. There are several different types of resolutions available on the market today, including 2MP (1080p), 4MP (1440p), 5MP (1920p) and 8MP (4K/2160p). Each one has its benefits. For instance, a 5MP camera can clearly show faces, whereas a 1080p camera may not be able to. This is important to consider if you plan to use the camera to identify items. A higher resolution allows you to zoom in digitally without losing much detail.
Lens
Choosing the right lens for your CCTV camera can be vital for capturing the needed footage. The size and type of a lens can impact your needs and how the camera will view the scene it captures. The focal length of a lens determines the range and distance it can see. Typically a smaller lens is more suitable for viewing a wide area within a short distance, while a larger one would be better for catching a clear image of a distant object.
Another critical factor to consider when picking the right lens is the iris, which controls how much light passes through the security camera lens’ aperture. A manual iris allows you to control how much of a scene is in focus, while an auto iris adapts automatically to light changes. The iris also affects the depth of field, the distance between the nearest and farthest objects that appear sharp in an image. A narrower iris means less distance between the closest and farthest objects; therefore, more of a scene will be in focus.
Infrared
There are a lot of different applications for an infrared camera, but it’s especially useful in security. They allow you to see what you can’t with your normal eyes and help to detect threats like smoke or smuggled weapons.
An infrared camera measures the temperature of objects through the radiation they emit. This data is then converted into an electronic image showing the object’s apparent surface temperature. The sensor array of an infrared camera contains thousands of detector pixels that react to the radiation emitted from the object. These pixels are arranged in a grid, and each of them is individually measured and processed to generate a color map that reflects the infrared spectrum.
Thermal images are also useful for energy audits, electrical inspections, gas detection surveys and building envelope analysis. They provide detailed and accurate data and can be used to support insurance claims or substantiate restoration repairs.
Power
CCTV security cameras use a lot of power to operate. This is why they typically need a power supply or adapter. If you are installing many CCTV cameras, you may want to consider using a power distribution box from a trusted enclosure manufacturer. This will help you elegantly route the power cables and connect and control them all at once. In addition, it will ensure that each camera is supplied with enough power. This is important because some cameras have features that can use more power when they are on, such as infrared LEDs and motorized lenses. This is why it’s essential to check the camera’s manual before connecting it to the power source. Ensure the voltage is right, or your camera will be damaged and void its warranty.
