System Q Ltd Manufacturers of CCTV Equipment

23years
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System Q Ltd Manufacturers of CCTV Equipment
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Lens Calculator

Select Distance and Focal Length



1/3" CCD

Mtrs Feet
Horizontal 0.00 0.00
Vertical 0.00 0.00

1/4" CCD

Mtrs Feet
Horizontal 0.00 0.00
Vertical 0.00 0.00

Please note this is for guidance only.

3.6mm Camera 6mm Camera
Horizontal field of view 72°. A vehicle registration should be distinguished at around 4 - 6mtrs or less Horizontal field of view 44°. A vehicle registration should be distinguished at around 6 - 8.5mtrs or less
3.6mm Lens @ 5mtrs(16ft) 6mm Lens @ 5mtrs(16ft)
3.6mm Lens @ 10mtrs(33ft) 6mm Lens @ 10mtrs(33ft)
3.6mm Lens @ 20mtrs(65ft) 6mm Lens @ 20mtrs(65ft)
8mm Camera 12mm Camera
Horizontal field of view 34°. A vehicle registration should be distinguished at around 14 - 16mtrs or less Horizontal field of view 23°. A vehicle registration should be distinguished at around 18 - 22mtrs or less
8mm Lens @ 5mtrs(16ft) 12mm Lens @ 5mtrs(16ft)
8mm Lens @ 10mtrs(33ft) 12mm Lens @ 10mtrs(33ft)
8mm Lens @ 20mtrs(65ft) 12mm Lens @ 20mtrs(65ft)

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