Choose the camera. Validate the image.

Connect the scene, lens, pixel density and lighting to the evidence your project needs.

1. Choose a camera from the evidence you need

   Translate scene requirements into optics, exposure and a recording test.

2. Field of view and pixel density: a worked DORI example

   Calculate scene width and a starting focal length, then test the recorded result.

3. Low-light imaging: exposure time matters as much as brightness

   Separate a bright still scene from useful evidence of moving subjects.

4. WDR: preserve detail across bright and dark regions

   Evaluate moving evidence rather than comparing a single dB figure.

5. PTZ fundamentals: zoom, coverage and unattended gaps

   A moving view can inspect detail but needs a coverage plan.