CCTV Tool

Lens Focal Length Calculator

Determine the ideal lens size to achieve the perfect view of your target area at any distance.

Distance to Object (m)

Target Width (m)

Sensor size (Format)

* The target width defines how much area you want to see horizontally at the specified distance.

Recommended Focal Length

0.0mm

Pick a lens closest to this value. Higher mm = more zoom, lower mm = wider angle.

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