This Camera FoV Calculator uses the Lens EFL, Distortion, and an Image Sensor.
Camera Field of View Calculator
This calculator provides the camera's field of view based on an image sensor and a lens. The field of view of a camera is dependent upon the focal length of the lens, the image sensor size, the lens distortion, and the lens image circle. We also have a wide angle lens FoV calculator which provides the field of view for our lenses on your camera's sensor.
There are 4 inputs for the field of view of a camera.
1.) The effective focal length of the lens (EFL)
The EFL of a lens is a first order optical parameter. It should not be confused with the Back Focal Length (BFL) or the Flange Focal Distance (FFD) which are mechanical parameters.
2.) The image sensor active area
The image sensor active area is calculated by using the pixel size and the total number pixels in the resulting image/video. If the output image or video is cropped, the field of view will change.
3.) The relative illumination of a lens
The relative illumination is the reduction of light transmitted through a lens, as a function of position in image space. The camera industry loosely uses the term “Image Circle” as the position in image space where relative illumination is ~50%.
4.) The distortion of a lens
Lens distortion is an aberration that occurs in optical design. Distortion is common in wide angle and fisheye lenses, but can occur in normal field of view lenses. Distortion increases the Field of View of a lens by compressing the angular resolution.
The Calculator:
Use other free Camera Calculators by clicking below
What's Your Application? Our Optics Cover the Spectrum.
Does it Require an IP65+ Lens?
We offer IP65+ variants of many lenses. These are suitable for applications exposed to the environment, without a window.
Mobile Robotics?
Find a low F# or low distortion lens to optimize your computer vision framerate.
Surveillance?
Our low F#, high resolution lenses are suitable for 180° dome cameras, low light, and active IR illuminated scenes.
Consumer / AR+VR?
Our high resolution fisheye lenses will let you design 360° cameras and and stereographic lenses are equivalent to "GoPro" lenses.
Video Conferencing?
Our wide-angle, low distortion, high resolution M12 lenses result in optimal object deformation without post-processing.
Aerial Robotics?
Our light-weight, miniature lenses are ideal for collision avoidance, long-distance viewing, and end-customer viewing.
Surveillance?
Our low F#, high resolution lenses are suitable for 180° dome cameras, low light, and active IR illuminated scenes.
Video Conferencing?
Our wide-angle, low distortion, high resolution M12 lenses result in optimal object deformation without post-processing.