Swann Security - Home & Business Security

How it works:

Simply input the required data you would to calculate. Note for the calculation of the lens size you must enter in a) minimum width or b) minimum height or both in order for it to work properly.

Calculate Field of View (FOV)

Enter the CCD Chip Size, Lens Size, and Distance to Object:
Chip CCD Size:	1/3" 1/4"
Lens Size:	mm
Distance to Object:	ft.

Angle of View:	deg.
Height:	ft.
Width:	ft.

Calculate Required Lens Size

Enter Chip CCD Size, Distance to Object and either the minimum required Scene Width or Height:
Chip CCD Size:	1/3" 1/4"
Distance to Object:	ft.
Minimum Width:	ft.
(Or) Minimum Height:	ft.

Lens Size:	mm

Find the Swann DTS icon which will help you choose the right lens for your Security application

*DTS: Refers to the ideal "Distance To Subject" from a camera viewing a 6ft/1.8m tall person from head to toe on a standard TV. This assumes the camera is viewing from 3ft/0.9m off the ground.

Terms of Use: The calculator provides the estimation of possible Lens viewing under the specified general conditions. It is purely for reference purpose. Your result might be very different from it due to different scene complexity, lighting condition, weather, pollution, fire etc. Swann Communications Ltd assumes no responsibility for any consequences that may arise from the use of this calculator.