This Camera Field Of View 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 required 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.

Our Camera Lens Calculator:

 Click below to use other Camera Calculators

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

Find a Lens Using Our M12 Lens Calculator Or By Browsing 30+ Below

Low Distortion 1.8mm M12 Lens

CIL018-F2.8-M12IR

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

Low Distortion 2.2mm M12 Lens

CIL023-F1.8-M12IR

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

Low Distortion 2.7mm M12 Lens

CIL027-F2.8-M12IR

2.7mm M12 Lens for IMX226
2.7mm M12 Lens for IMX226
A 2.7mm M12 Lens for S-Mount FLIR
Arducam IMX477 2.7mm M12 Lens
$39.00

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

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

Low Distortion 6.0mm M12 Lens

CIL060-F2.8-M12IR

A 6mm M12 lens for 4K+ sensors
A 6mm M12 lens for 4K+ sensors
A 6mm cctv lens for raspberry pi HQ
A 6mm S-Mount lens for 1/1.8
Low Distortion 6.0mm M12 Lens
$29.00

Telephoto 12mm M12 Lens

CIL125-F2.4-M12IR

Telephoto 12mm M12 Lens
Telephoto 12mm M12 Lens
Telephoto M12 Lens 12mm
Telephoto 12mm M12 Lens
Telephoto 12mm S-Mount Lens
$29.00

195°@4.7mm Fisheye M12 Lens

CIL216-F2.0-M12A650

Fisheye Lens for 1/2.3
Fisheye Lens for 1/2.3
M12 Fisheye Lens for 20MP cameras
195 degree S Mount Lens for AR1820HS
$59.00

185°@8.2mm 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

Telephoto 26mm M12 Lens

CIL260-F2.0-M12IR

25mm M12 Lens
25mm M12 Lens
25mm S Mount Lens
25mm lens for FLIR Cameras
$59.00

210°@3.3mm Fisheye M12 Lens

CIL211-F2.0-M12IR

210deg M12 Mini Fisheye Lens
210deg M12 Mini Fisheye Lens
210deg M12 Fisheye Lens
S mount Fisheye Lens 1mm
$49.00

226°@3.9mm Fisheye M12 Lens

CIL212-F2.0-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
$49.00
135° 4K+ low distortion M12 lens
135° 4K+ low distortion M12 lens
135° low distortion S-Mount Lens
No Distortion Wide Angle M12 Lens
CIL018-F2.8-M12IR
Low Distortion 1.8mm M12 Lens
$39.00
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
CIL023-F1.8-M12IR
Low Distortion 2.2mm M12 Lens
$39.00
2.7mm M12 Lens for IMX226
2.7mm M12 Lens for IMX226
A 2.7mm M12 Lens for S-Mount FLIR
Arducam IMX477 2.7mm M12 Lens
CIL027-F2.8-M12IR
Low Distortion 2.7mm M12 Lens
$39.00
IP65 M12 Lens
IP65 M12 Lens
IP67 M12 Lens
IP67 FLIR S-Mount Lens M12 Lens
CIL034-F2.7-M12IP660
IP67+ No Distortion 3.2mm Lens
$49.00
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
CIL334-F2.2-M12A660
Large Format 3.5mm M12 Lens
$39.00
A 6mm M12 lens for 4K+ sensors
A 6mm M12 lens for 4K+ sensors
A 6mm cctv lens for raspberry pi HQ
A 6mm S-Mount lens for 1/1.8
Low Distortion 6.0mm M12 Lens
CIL060-F2.8-M12IR
Low Distortion 6.0mm M12 Lens
$29.00