1. What is PTZ Camera Field of View?

The Field of View (FOV) of a PTZ (Pan-Tilt-Zoom) camera determines how much of the scene the camera can capture at a given zoom level. It's a crucial parameter for surveillance system design and camera placement.

2. How Does the Calculator Work?

The calculator uses the FOV formula:

Where:

• \( sensor\_size \) — Camera sensor size in millimeters
• \( focal\_length \) — Lens focal length in millimeters

Explanation: The formula calculates the angular field of view based on the physical dimensions of the camera sensor and the lens focal length.

3. Importance of FOV Calculation

Details: Proper FOV calculation ensures adequate coverage area for surveillance, helps determine optimal camera placement, and assists in selecting appropriate lenses for specific applications.

4. Using the Calculator

Tips: Enter the camera sensor size (typically between 1/4" to 1" for most PTZ cameras) and the lens focal length. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How does sensor size affect FOV?
A: Larger sensors produce wider fields of view at the same focal length compared to smaller sensors.

Q2: What's the relationship between focal length and FOV?
A: Longer focal lengths produce narrower fields of view (more zoomed in), while shorter focal lengths produce wider fields of view.

Q3: What are typical FOV values for PTZ cameras?
A: PTZ cameras typically offer FOV ranges from 2-3° at maximum zoom to 60-70° at wide angle.

Q4: Does this calculation work for all camera types?
A: This formula works for any rectilinear lens (non-fisheye) camera system.

Q5: How do I find my camera's sensor size?
A: Sensor size is usually specified in the camera's technical specifications, often as a fraction (e.g., 1/2.8").