1. What is the Angle of View Formula?

The Angle of View (AOV) formula calculates the angular extent of a scene captured by a camera, based on the sensor size and focal length of the lens. It helps photographers understand how much of a scene will be captured in the frame.

2. How Does the Calculator Work?

The calculator uses the Angle of View formula:

Where:

• \( d \) — Sensor dimension (mm)
• \( f \) — Focal length (mm)

Explanation: The formula calculates the angle in radians, which is then converted to degrees for easier interpretation.

3. Importance of Angle of View Calculation

Details: Understanding angle of view is crucial for photographers to select appropriate lenses, compose shots effectively, and predict how much of a scene will be captured with different equipment combinations.

4. Using the Calculator

Tips: Enter sensor dimension and focal length in millimeters. Both values must be positive numbers. Common sensor dimensions: full-frame (36mm), APS-C (~24mm), Micro Four Thirds (17.3mm).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between angle of view and field of view?
A: Angle of view is the angular extent of the scene, while field of view is the linear measurement of the scene at a specific distance.

Q2: How does sensor size affect angle of view?
A: Smaller sensors with the same focal length will have a narrower angle of view (crop factor effect).

Q3: What is a typical angle of view for common lenses?
A: Wide-angle lenses: 60-100°, Standard lenses: 40-50°, Telephoto lenses: 10-30°.

Q4: Does this calculation work for all lens types?
A: The formula provides a good approximation for most rectilinear lenses, but may not be accurate for fisheye lenses with significant distortion.

Q5: How does aspect ratio affect angle of view?
A: Angle of view differs between horizontal, vertical, and diagonal measurements. This calculator provides the diagonal angle of view.