Lens Field Calculator

Our lens field calculator is a web-based tool to calculate video camera lens fields of view. Based upon Snell’s law, this tool measures the resulting field of view based on an ideal lens. We offer this tool as a complimentary service to the subsea community.

Please keep in mind that wide angle lenses tend to vary significantly from specs due to lens distortion.

Input
Sensor size 1/4 inch 1/3 inch 1/2 inch 2/3 inch 1 inch
Focal length of lens (mm)
Distance to object (m)
Results

In Air

Decimal Degrees
Horizontal FOV   Vertical FOV   Diagonal FOV
Decimal Minutes
Horizontal FOV   Vertical FOV   Diagonal FOV
Horizontal size   Vertical size   Diagonal size

In Seawater (Flat Port)

Decimal Degrees
Horizontal FOV   Vertical FOV   Diagonal FOV
Decimal Minutes
Horizontal FOV   Vertical FOV   Diagonal FOV
Horizontal size   Vertical size   Diagonal size

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