What is the purpose of infrared capability in CCTV cameras?

• A. To record video in low-light or no-light conditions
• B. To enable color recording
• C. To enhance audio capture
• D. To increase storage capacity

Answer: (A)

The purpose of infrared capability in CCTV cameras is primarily to record video in low-light or no-light conditions. Infrared technology allows cameras to capture images by using infrared light, which is invisible to the human eye but can illuminate subjects in complete darkness. This capability is essential for security and surveillance applications, where consistent monitoring is crucial regardless of ambient light conditions. In practical use, this often involves the use of infrared LEDs that provide the necessary illumination without disturbing the environment, making it possible to maintain a watchful eye even in the absence of visible light.

The other options do not align with the fundamental function of infrared in CCTV cameras; for example, enhancing audio capture or increasing storage capacity does not involve the visual recording capabilities of the camera. Similarly, infrared does not contribute to color recording since it operates in the range of light that is outside of the visible spectrum.