Support Tools
The following tools are provided to enable you to make estimates for specific requirements related to digital CCTV surveillance solutions. Please note actual specifications may differ significantly, especially in the case of storage provision due to factors related to compression technologies, quality of recording and requirements for evidential integrity.


Lens Calculator:

Use the calculator below to determine the Field of View (FOV) for the lens and distance you need to view.

Lens Horizontal FoV
Distance Vertical FoV

Hard Drive Space Calculator:

Use this calculator to estimate the scale of digital storage you will require, based on how many days of footage you want to retain.

1 frame per second (fps) is the lowest frame rate recordable and 30 fps is the maximum.
Real-time recording (at 30fps) is generally only manadated where regulatory requirements are imposed, for example within government facilities, casinos or financial institutions.
3 to 5 fps is generally deemed sufficient to capture 'normal' activity.

How many days of video to store?
Number of cameras recording?
Frames per second each camera is to record?
Hours per day the facility operates?
Days of the week the facility operates?
Hard Drive space you will need >>