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Field of View

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Compute rectilinear camera field of view from focal length and sensor geometry, then estimate the footprint at a target range.

mm
um
px
px
m

Horizontal FOV

39.60 deg

Vertical 26.99 deg

Footprint

720.0 x 480.0 m

At target distance

Sensor diagonal

43.27 mm

Diagonal FOV 46.79 deg

Optical cone and target-plane footprint

Sensor size and focal length set the angular field of view, which projects to a footprint at range.

Optical cone

46.79 deg diagonal

sensor

36.0 x 24.0 mm

range

1,000 m

focal

50.0 mm

Target-plane footprint

720.0 x 480.0 m at 1,000 m

Horizontal FOV

39.60 deg

Vertical FOV

26.99 deg

Diagonal FOV

46.79 deg

Footprint diagonal

865.3 m

Open Source and Easy to Use Elsewhere

This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.

Open source: review the implementation and see how the results are produced.

Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.