CCTV Calculators

 

NB: The CCTV tools made available via this website are provided for general information only. MAP Datum Ltd accepts no liability arising from the use of these tools nor does it offer any warranty.

Lens Calculator (link to external website)

DVR Calculator (link to external website)

Simple Field of View Calculator

Instructions:

  1. Select the lens format you are using.
  2. Enter any 2 of the 3 other items of information. Distances can be entered using metres or feet, but you must be consistent with whatever units you choose, i.e, you cannot mix metric and imperial.
  3. Press the "Calculate" button to get the missing item of information. (Press the "Reset" button to clear the form and start again.)

Select lens format:
1/4 inch
1/3 inch
1/2 inch
2/3 inch
1 inch  

Distance to object:              1

Width of scene:                   2
or
Height of scene:                  2

Size of lens (mm):               3

   

 

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Member, New Zealand Security Association