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 Board Lenses Cover the Spectrum.

Wide-Angle 3.6mm M12 Lens

CIL336-F1.9-M12A650

4mm IP6K9K M12 Lenses
4mm IP6K9K M12 Lenses
4mm IP69 S Mount Lenses
4mm IP6K9K M12 Lens AR0230

195°@6.8mm IP67 M12 Fisheye

CIL222-F2.0-M12A650

Mini Fisheye S Mount Lens
Mini Fisheye S Mount Lens
Mini Fisheye M12 Lens
Miniature Fisheye M12 Lens

185°@7.8mm Fisheye M12 Lens

CIL227-F2.5-M12ANIR

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

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

Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023
Wide Angle Low Distortion 2mm S-Mount Lens CIL023

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

Mid-Range 7.6mm M12 Lens

CIL080-F1.8-M12IR

8mm 1/1.7
8mm 1/1.7
8mm S-Mount Lens for 4K+ sensors
8mm M12 Lens for 12MP+ 1/1.7

200°@5.7mm IP67 Fisheye M12 Lens

CIL217-F2.7-M12ANIR

Mini Fisheye S Mount Lens
Mini Fisheye S Mount Lens
Tiny Fisheye Lens
Miniature Fisheye

Telephoto 35mm M12 Lens

CIL350-F2.4-M12A650

35mm M12 Lens
35mm M12 Lens
35mm Board Mount Lens
35mm S Mount Lens

Telephoto 26mm M12 Lens

CIL260-F2.0-M12IR

25mm M12 Lens
25mm M12 Lens
25mm S Mount Lens
25mm lens for FLIR Cameras

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-M12A660

Mini M12 Fisheye Lens for Board Mount Cameras
Mini M12 Fisheye Lens for Board Mount Cameras
Mini M12 Fisheye Lens for Board Mount Cameras
Mini M12 Fisheye Lens for Board Mount Cameras
Mini M12 Fisheye Lens for Board Mount Cameras

Low Distortion 2.6mm M12 Lens

CIL028-F2.3-M12A650

A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.

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

Low Distortion 1.8mm M12 Lens

CIL018-F2.8-M12A650

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

Low Distortion 2.6mm M12 Lens

CIL028-F2.3-M12A650

A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.
A 2.8mm M12 lens with a wide angle and no distortion for the RPi HQ Camera.

No Distortion 3.3mm M12 Lens

CIL033-F2.8-M12A650

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 M12 lens that is wide angle no distortion.
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 M12 lens that is wide angle no distortion.

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.

Stereographic 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

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

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

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.