Night Vision Explained: Infrared vs Colour, and What You'll Actually See

What matters in practice:

• Infrared for distance, colour for detail close up — most cameras offer both, and many switch between them.
• The advertised night range is a best case — reflections from walls, eaves and glass are what wash pictures out.
• Test at night before you finalise the position — a daylight install hides the problem until it matters.

Most break-ins happen after dark, so the night view matters more than the daytime one. Yet it is the part buyers understand least. Here is how the two main types work, and what to expect from each.

The short answer

Infrared is better for distance and for staying hidden. Colour night vision is better for detail and identification at shorter range. Many cameras offer both, or switch between them.

How each type works

• Infrared (IR): the camera has small lights that shine infrared, which people can't see, and the camera sees the reflection in black and white.
• Colour night vision: the camera uses a visible white light or a very sensitive sensor to record colour in low light.

Compared

Which should you choose?

• Large yard, farm or long driveway: infrared, for range
• Front door, till or a gate close to the camera: colour, for identifying details
• Deterrence: a bright spotlight can scare intruders off
• Discreet watching: infrared, since there is no light to give the camera away

What affects what you will really see

• The stated range is a best case. Real results are usually shorter
• Reflective surfaces such as walls, windows and glass can wash out the image
• Rain, dust and insects near the lens cause glare and white flashes
• A camera behind glass reflects its own infrared and shows a blur
• Resolution still matters. A sharper camera shows more detail at night too
• Large, dark open areas with nothing to reflect infrared show less than small, close ones

Smart night modes

Many cameras now switch between infrared and colour automatically, using infrared as the default and switching to colour with a light when they detect movement. This gives you the best of both with less light running all night.

Tips for a better night view

1. Mount the camera away from walls and objects that reflect infrared
2. Keep spiders and insects away from the lens, using a small clip or a regular clean
3. Add a separate floodlight for important areas
4. Don't aim straight at a street light or into headlights
5. Test at night before finalising the position

Common mistakes

• Trusting the advertised range without testing
• Mounting under an eave so the infrared bounces back from the roof
• Using colour night vision on a large field, where the light has no effect

Frequently asked questions

Why is my night picture washed out? Often the camera is too close to a wall or roof overhang that reflects the infrared.

Will infrared warn intruders? Usually not, though some models show a faint red glow.

Is colour night vision always better? Not for long distance, where infrared outperforms it.

Our advice

Choose by distance. If the subject is within a few metres, colour wins. Beyond that, infrared is the safer choice.

Related reading

• Camera Resolution: What You Need to See a Face or a Number Plate
• Sirens, Spotlights and Two-Way Audio: Do They Actually Stop Thieves?
• Indoor vs Outdoor Cameras: Weatherproofing, Placement and Privacy

Next steps

Backspace Business Solutions matches night vision type and range to the distance from each camera to the spot you actually need to see.

Message us on WhatsApp or request a free site assessment if you would like a night view tested on your site before the cameras are fixed in place.