Webcam Autofocus Test
Evaluate your camera's autofocus reaction time, hunting behavior, and focus sharpness with professional DSLR-style focus peaking and automated latency speed benchmarking.
Place your hand 10 cm in front of the lens, click "Start Speed Test", then quickly remove your hand to measure refocus duration.
How to Use This Test
- Click "Start Camera" to activate your live video feed.
- Watch the Current Focus Score meter while holding an object or document up to the camera. Higher scores indicate crisp, well-focused edges.
- To test how fast your camera re-focuses, place your hand 10–15 cm from the lens, click "Run 5s Refocus Test", and quickly remove your hand.
- If your webcam supports manual focus, use the slider to lock the focal distance in place.
What Is a Good Refocus Speed?
Modern webcams typically lock onto a new subject within 0.5 to 1.5 seconds. If your camera takes more than 2 or 3 seconds to re-focus, or constantly "hunts" back and forth without settling, the room may be too dim or the camera lens may be dirty.
Why Webcams Sometimes Pulse or Fail to Focus
- Low Light: In dim rooms, video noise makes it hard for the camera sensor to detect clear edges to lock onto.
- Too Close (Macro Limit): Most standard webcams cannot focus on objects closer than 7–10 cm (around 3 inches).
- Blank Subjects: Cameras need contrast to focus; pointing directly at a solid white wall or plain shirt can cause continuous hunting.
Autofocus vs. Fixed Focus
Some integrated laptop cameras and budget webcams are fixed-focus. They do not have moving lens parts and are permanently focused for arm's-length video calls (around 50 cm to 2 meters). If your camera does not refocus when moving objects closer, it is likely a fixed-focus model.