This Camera FoV Calculator uses the Lens EFL, Distortion, and an Image Sensor.

Camera Field of View Calculator

A Camera Field of View Calculator. This Picture Shows a Lens Field of View and the Calculator Details.
A Camera Field of View Calculator. This Picture Shows a Lens Field of View and the Calculator Details.

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.

Camera Field of View Equations

The Calculator:

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.

 Use other free Camera Calculators

Lens Focal Length Calculator. EFL Calculator.
Camera Angle of View Calculator. Camera AoV Calculator.
Camera Depth of Field Calculator. DoF Calculator.

Browse Our Catalog To Find A Lens.

M12 Lenses Catalog Commonlands.webp__PID:00c03a86-28bb-4d50-8b1e-7e5ae7da0bcd

What's Your Application? Our Lenses Cover the Spectrum.

Wide-Angle 4.5mm M12 Lens

CIL344-F1.9-M12B660

Wide-Angle 4.5mm M12 Lens

188°@6.6mm IP67 M12 Fisheye

CIL222-F2.0-M12A650

188°@6.6mm IP67 M12 Fisheye

Mid-Range 7.6mm M12 Lens

CIL080-F1.8-M12IR

Mid-Range 7.6mm M12 Lens

Mobile Robotics?

Find a low F# or low distortion lens to optimize your computer vision.

Factory Machine Vision?

Our cost-effective compact C-Mount lenses are designed for up to 1.1"~1.2" format global shutter sensors.

35mm C-Mount Lens 1.1" 20MP+

CIL545-F2.8-CMANIR

35mm C-Mount Lens 1.1" 20MP+

25mm C-Mount Lens 1.1" 20MP+

CIL544-F1.8-CMANIR

25mm C-Mount Lens 1.1" 20MP+

Large Format 5.5mm M12 Lens

CIL056-F2.4-M12A650

Large Format 5.5mm M12 Lens

226°@3.9mm Fisheye M12 Lens

CIL212-F2.2-M12A660

226°@3.9mm Fisheye M12 Lens

200°@2.9mm Fisheye M12 Lens

CIL208-F2.2-M12A650

200°@2.9mm Fisheye M12 Lens

Intelligent Everywhere?

Our low distortion lenses with multiple F# can be used to optimize your depth of field.

Surveillance?

Our fisheye and IR Corrected lenses are suitable for doorbell cameras and active IR illuminated scenes.

Telephoto 26mm M12 Lens

CIL260-F2.0-M12IR

Telephoto 26mm M12 Lens

Mid-Range 7.6mm M12 Lens

CIL080-F1.8-M12IR

Mid-Range 7.6mm M12 Lens

200°@5.7mm IP67 Fisheye M12 Lens

CIL217-F2.7-M12A650

200°@5.7mm IP67 Fisheye M12 Lens

Ingress Protected 7.8mm M12 Lens

CIL079-F2.0-M12A650

Ingress Protected 7.8mm M12 Lens

IP67 12mm M12 Lens

CIL120-F2.4-M12A650

IP67 12mm M12 Lens

Wide-Angle 4mm M12 Lens

CIL341-F2.0-M12A650

Wide-Angle 4mm M12 Lens

Does it Require Getting Dirty?

Our IP67 and IP69K lenses are suitable for applications exposed to the environment.

Aerial Robotics?

Our tiny lenses are ideal for collision avoidance and object recognition.

Telephoto 12mm M12 Lens

CIL125-F2.4-M12IR

Telephoto 12mm M12 Lens

Telephoto 35mm M12 Lens

CIL350-F2.4-M12A650

Telephoto 35mm M12 Lens

Telephoto 26mm M12 Lens

CIL260-F2.0-M12IR

Telephoto 26mm M12 Lens