Instantaneous Field of View Calculator

Calculate the instantaneous field of view (FOV) based on lens parameters and object distance.

Input Parameters

Calculation Results

Calculation Formula

FOV = 2 * arctan((sensorSize / (2 * focalLength)) * tan(FOV_angle))

Where:
FOV = Field of View (in degrees)
focalLength = Focal length of the lens (mm)
sensorSize = Sensor size (mm)
objectDistance = Object distance (m)

Results

Horizontal FOV:

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Vertical FOV:

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Instantaneous Field of View Calculator Calculator Usage Guide

Learn how to use the Instantaneous Field of View Calculator calculator and its working principles

How to Use the Calculator

  1. Enter the focal length of your lens in millimeters (mm).
  2. Enter the sensor size of your camera in millimeters (mm).
  3. Enter the distance to the object you are observing in meters (m).
  4. Click the "Calculate" button to compute the horizontal and vertical field of view.
  5. The results will be displayed in degrees.

Understanding the Formula

The calculator uses the following formula to calculate the field of view:

FOV = 2 * arctan((sensorSize / (2 * focalLength)) * tan(FOV_angle))

This formula takes into account the focal length, sensor size, and the angle of view to provide accurate field of view measurements.

Applications

This calculator is useful for photographers, videographers, and engineers who need to determine the field of view of a lens for specific scenarios. It can help in choosing the right lens for a particular application or in adjusting camera settings for optimal coverage.