Infrared night vision

Many cameras use infrared (IR) LEDs to illuminate a scene that appears dark to people. The camera sensor records the reflected IR light, often producing monochrome footage. The advertised IR distance is a maximum under specified conditions, not a promise of recognizable detail across an entire driveway or car park.

Walls, glass, nearby objects, rain, dust, and reflective surfaces can change the result. IR light reflected by a close wall or window can make the image look washed out. If the camera is behind glass, its built-in IR may reflect back into the lens; turn off the camera LEDs and use suitable external lighting where appropriate.

Color in low light

Some cameras keep a color image in dim conditions by using a more sensitive sensor, a wider aperture, longer exposure, or a visible white light. More light can reveal color, but a long exposure can blur moving people or vehicles. Visible illumination may disturb neighbors or affect privacy, so consider where it points and whether it is necessary.

“Full color at night” describes a feature, not a guaranteed image quality. Test it at the real mounting height and distance, with movement, clothing, and lighting similar to the intended scene.

Positioning is as important as the camera

Mount the camera to avoid looking directly at headlights, street lamps, or a bright entrance light. Check the view after dark, not only in daylight. A wide view may cover a large area but leave faces and number plates too small; a narrower view can improve detail in a specific zone. Do not point cameras into private neighboring spaces unnecessarily.

If a scene is too dark, adding a properly positioned, motion-controlled light may be more effective than upgrading the camera. Confirm that the lighting and camera exposure do not create sharp shadows or wash out the area of interest.

Test before final installation

Temporarily mount or safely position the camera, then review recorded footage at the intended distance. Test people walking across and toward the frame, vehicle headlights, rain or fog where relevant, and the transition between day and night modes. Check the recording, not just the live preview. Review focus, blur, glare, motion detection, and whether the subject is identifiable for your actual purpose.

Compare storage and bandwidth too: higher frame rates, resolution, or bitrates can increase the amount of recorded data. Use the storage calculator as a planning estimate, then validate the recorder's retention with the final night-time settings.

Privacy and local rules

Before adding visible lighting or recording after dark, consider local notice and privacy requirements. Limit the field of view to the area needed for security, restrict footage access, and avoid retaining recordings longer than necessary.