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Security camera resolution and night vision: what to compare
Assess identification at the required distance in day and night conditions, not resolution alone.
Start with the real use
Higher resolution can preserve more detail but increases bandwidth and storage. Lens angle spreads those pixels across the scene, so a very wide camera may show less facial detail at distance.
Understand the compromise
Infrared can illuminate darkness but loses colour and may reflect from walls, windows, rain or insects. Colour night modes often need ambient or built-in visible light.
Verify the exact product
Use exact-model samples at the mounting height and distance, and plan lighting, bitrate, retention and privacy together.
Before you decide
- Decision to record: Assess identification at the required distance in day and night conditions, not resolution alone.
- Comparison to make: Higher resolution can preserve more detail but increases bandwidth and storage. Lens angle spreads those pixels across the scene, so a very wide camera may show less facial detail at distance.
- Trade-off to accept: Infrared can illuminate darkness but loses colour and may reflect from walls, windows, rain or insects. Colour night modes often need ambient or built-in visible light.
- Evidence to verify: Use exact-model samples at the mounting height and distance, and plan lighting, bitrate, retention and privacy together.
Common questions
Does 4K guarantee identifiable faces?
No. Distance, lens, movement, light, compression and angle all matter.
Is colour night vision always better?
It can add useful colour but normally needs enough visible light and may introduce blur or noise.
Sources and further reading
This is buying advice based on documented features and practical comparison criteria, not a hands-on product test. Check the exact manufacturer specification for compatibility and current support. Our editorial policy · Report a correction.
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