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

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

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

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

IP67+ No Distortion 3.2mm Lens

CIL034-F2.7-M12IP660

IP65 M12 Lens
IP65 M12 Lens
IP67 M12 Lens
IP67 FLIR S-Mount Lens M12 Lens
$49.00

200°@6.3mm Fisheye M12 Lens

CIL219-F2.5-M12IR

200° M12 Fisheye Lens
200° M12 Fisheye Lens
200° Mini Fisheye Lens
Mini M12 Fisheye Lens
$99.00

185°@7.8mm Fisheye M12 Lens

CIL227-F2.5-M12A660

Wide Angle Fisheye Lens for S Mount
Wide Angle Fisheye Lens for S Mount
Fisheye Wide Angle M12 Lens
Board Mount Lens Wide Angle Fisheye
$49.00

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.

Low Distortion 2.2mm M12 Lens

CIL023-F2.2-M12A650

Low Distortion Wide Angle M12 Lens 2mm
Low Distortion Wide Angle M12 Lens 2mm
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
2mm M12 Lens Low Distortion
2mm M12 Lens Wide Angle No Distortion
$39.00

Wide-Angle 3.5mm M12 Lens

CIL335-F1.8-M12A660

3.5mm Wide-Angle M12 Lens
3.5mm Wide-Angle M12 Lens
3.5mm Wide-Angle S-Mount Lens
Wide-Angle M12 Lens CIL335
$49.00

Fast 6mm M12 Lens

CIL061-F1.8-M12A650

6mm M12 Lens for S-mount cameras
6mm M12 Lens for S-mount cameras
6mm M12 Lens for FLIR and AR0234
6mm Lens for IMX290
$39.00

200°@5.7mm IP67 Fisheye M12 Lens

CIL217-F2.7-M12A650

Mini Fisheye S Mount Lens
Mini Fisheye S Mount Lens
Tiny Fisheye Lens
Miniature Fisheye
$39.00

F-Θ Wide-Angle 4.4mm M12 Lens

CIL344B-F2.7-M12A655

Wide Angle M12 Lens
Wide Angle M12 Lens
Wide Angle S-Mount Lens
AR0820 M12 Lens
$49.00

Telephoto 35mm M12 Lens

CIL350-F2.4-M12A650

35mm M12 Lens
35mm M12 Lens
35mm Board Mount Lens
35mm S Mount Lens
$59.00

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.

226°@3.9mm Fisheye M12 Lens

CIL212-F2.2-M12IR

Mini M12 Fisheye Lens for Board Mount Cameras
Mini M12 Fisheye Lens for Board Mount Cameras
S-Mount Fisheye Lens
Arducam Mini Fisheye Lens
Mini Fisheye 1mm M12 Lens
$59.00

Low Distortion 2.6mm M12 Lens

CIL028-F2.5-M12A650

A wide angle 2.8mm M12 lens no distortion.
A wide angle 2.8mm M12 lens no distortion.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A wide angle no distortion 2.8mm S Mount Lens.
$39.00

GoPro 3.0mm M12 Lens

CIL331-F2.5-M12A660

3.1mm Wide Angle M12 Lens
3.1mm Wide Angle M12 Lens
3mm S-Mount Lens
3mm M12 Lens
$39.00

Low Distortion 1.8mm M12 Lens

CIL018-F2.8-M12IR

135° 4K+ low distortion M12 lens for IMX335 and AR0521
135° 4K+ low distortion M12 lens for IMX335 and AR0521
135° low distortion S-Mount Lens
No Distortion Wide Angle M12 Lens
$39.00

Low Distortion 2.6mm M12 Lens

CIL028-F2.5-M12A650

A wide angle 2.8mm M12 lens no distortion.
A wide angle 2.8mm M12 lens no distortion.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A wide angle no distortion 2.8mm S Mount Lens.
$39.00

No Distortion 3.3mm M12 Lens

CIL033-F2.7-M12IR

A 3.3mm M12 lens that is wide angle no distortion.
A 3.3mm M12 lens that is wide angle no distortion.
A 3.3mm S Mount lens for the Raspberry Pi High Quality Camera.
A 3mm FLIR camera lens. A wide angle no distortion M12 Lens
3mm S Mount Lens with Arducam
No Distortion 3.3mm M12 Lens
$39.00

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.

Small 2.1mm M12 Lens

CIL821-F2.4-M12B650

A 2.1mm M12 Lens for 1/3
A 2.1mm M12 Lens for 1/3
Tiny Pinhole Lens for S-Mount Cameras
15mm TTL Short M12 Lens for Surveillance
$39.00

Large Format 3.5mm M12 Lens

CIL334-F2.2-M12A660

3.5mm M12 Lens for IMX226 AR0821 IMX537
3.5mm M12 Lens for IMX226 AR0821 IMX537
S-Mount Drone Lens for Wide Angle IMX226
Wide Angle Drone Lens for IMX226
$39.00

Wide-Angle 3.5mm M12 Lens

CIL335-F1.8-M12A660

3.5mm Wide-Angle M12 Lens
3.5mm Wide-Angle M12 Lens
3.5mm Wide-Angle S-Mount Lens
Wide-Angle M12 Lens CIL335
$49.00

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.