CCTV Night Vision

Night Vision

Most security cameras comes with night vision, which allow them to still see things even if it’s pitch black outside. But how does it work for CCTV Night Vision?

Many security cameras also include that same night vision technology, allowing them to capture footage even when it’s dark out.

Infrared Light

The most common type that’s used on most security cameras is infrared (IR) night vision, which relies on infrared light. If you’ve ever looked at the front of a security camera, you’ve probably noticed that it’s covered in a handful of small LED bulbs. This is the IR light, and when it gets dark out, these lights turn on and act as a flood light of sorts, dousing the camera’s field of view with infrared light.

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The thing is, infrared light is completely invisible to the naked eye. So it doesn’t look like a bright light is flooding the area from the outside, but it actually is—your eyes just can’t see it.

Furthermore, night vision footage from security cameras always looks black and white because human eyes can differentiate between black and white better than they can with other shades of colors, like red or blue. Because of that, most night vision cameras switch to a monochrome filter to make it easier for us to see the image.


Avoid Installing on Windows

If you’re using your camera behind a window, you’ll only see a blurry reflection at night. Ever tried to point your Wi-Fi cameras out a window, you’ve probably found that it works perfectly during the day. But, at night, it’s a blurry mess of video, showing mostly just the reflection of your camera and smears of light.

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This completely defeats the point of even having a security camera. If your camera did see someone outside, you’d never know what they looked like or what they were doing.

If you want your camera’s night vision to work through glass, you’ll want to provide exterior lighting. You can use either traditional outdoor lighting or IR lighting. You must also either turn off or cover the camera’s built-in IR lighting. Finally, you will either have to move the camera as close as possible to the window or angle it slightly instead of using a direct-on angle.

The best thing to do, of course, is to use an outdoor camera. An outdoor camera will bypass issues with glass and still benefit from most of these suggestions. But, if you can’t use an outdoor camera for any reason, consider these options to improve the video you do get from your indoor camera.

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Will the color change when it’s dark?

With Infrared Light, It won’t. You can see it with colors even during dark timings.