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Fixed or Varifocal? Security & Surveillance

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Bellefleur View Drop Down
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Joined: Nov/13/2011
Location: china
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    Posted: Dec/06/2011 at 8:37pm

So you need a camera security system for your home or business and have varying distances to cover, what can you do?  A standard security camera with a 3.6mm lens will basically cover a boxed area.  So if you are viewing your CCTV system from 10 feet then you will see 10 by 10.  If you view from 50 feet away then your horizontal view will be 47 feet.  For longer distances, consider investing in a CCTV system that offers cameras with 4-9mm lenses or 2.8-12mm lenses.  The advantages to these cameras are nearly endless, allowing you or the installer to customize and maximize every camera and viewing angle.


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