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.

Looking for recommendations, trying to figure out where to start, Or Want to Discuss Customizations?
Contact our US-based Optical Engineers.

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.

Low Distortion 6.8mm M12 Lens

CIL068-F2.5-M12A650

Low Distortion 6.8mm M12 Lens

200°@5.7mm IP67 Fisheye M12 Lens

CIL217-F2.7-M12A650

200°@5.7mm IP67 Fisheye M12 Lens

Fast 6mm M12 Lens

CIL061-F1.9-M12B650

Fast 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.

16mm C-Mount Lens 1.1" 12MP

CIL513-F2.8-CMANIR

16mm C-Mount Lens 1.1" 12MP

25mm C-Mount Lens 1.1" 12MP

CIL514-F2.8-CMANIR

25mm C-Mount Lens 1.1" 12MP

Small 2.5mm M12 Lens

CIL825-F2.4-M12ANIR

Small 2.5mm M12 Lens

No Distortion 4.4mm M12 Lens

CIL043-F3.2-M12B650

No Distortion 4.4mm M12 Lens

230°@4.5mm Fisheye M12 Lens

CIL213-F2.3-M12A660

230°@4.5mm 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.

200°@6.3mm Fisheye M12 Lens

CIL219-F2.5-M12IR

200°@6.3mm Fisheye M12 Lens

186°@5.2mm IR Corrected Fisheye M12 Lens

CIL239-F2.0-M12A650

186°@5.2mm IR Corrected Fisheye M12 Lens

Low Distortion 6mm M12 Lens

CIL059-F1.7-M12B650

Low Distortion 6mm M12 Lens

188°@6.6mm IP67 M12 Fisheye

CIL222-F2.0-M12A650

188°@6.6mm IP67 M12 Fisheye

No Distortion 3.2mm Lens

CIL034-F2.3-M12BNIR

No Distortion 3.2mm Lens

Fast 6mm M12 Lens

CIL061-F1.9-M12B650

Fast 6mm 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.

Large Format 3.5mm M12 Lens

CIL334-F2.2-M12C660

Large Format 3.5mm M12 Lens

Wide-Angle 3.5mm M12 Lens

CIL335-F1.8-M12A660

Wide-Angle 3.5mm M12 Lens

Small 3.3mm M12 Lens

CIL036-F2.2-M12A650

Small 3.3mm M12 Lens