CCTV Camera Resolution: 2MP vs 4MP vs 5MP vs 8MP

How CCTV resolution affects detail, storage, bandwidth and camera selection.

Resolution is only one factor

More pixels can provide more detail, but lens quality, sensor size, lighting, distance and compression determine whether that detail is useful.

Choose from the scene

Entrances, gates and identification points may need more detail than overview areas. Define the evidence requirement first.

Match the recorder

Verify NVR support for resolution, codec, bitrate and frame rate, plus decoding limits for multi-camera viewing.

Use the calculators

Combine resolution decisions with Zee Links storage, bandwidth and focal-length calculators.