Interactive FOV Calculator
Enter your camera and lens parameters to calculate Field of View in real time, and find the perfect Towin lens for your application.
Input Parameters
mm
mm
mm
Calculation Result
Horizontal FOV
—°
Vertical FOV
—°
Diagonal FOV
—°
Object Width
—mm
at — mm WD
Recommended Lens
Quick Lens Suggestions (Similar FOV Range)
Enter parameters to see matching lenses
Note: FOV calculation is based on thin-lens model and ideal rectilinear projection.
Actual FOV may vary slightly due to lens distortion, optical design and manufacturing tolerances.
For wide-angle or fisheye lenses, please refer to the specific product datasheet.