System Design

So where should you locate your security cameras?

Below are a few of the most common viewing patterns. Each has benefits and possibly some draw backs. Your application will dictate which design is most effective.

Mid Wall Pattern

Mounting a camera mid wall and adjusting its view perpendicular to the wall. This location can be useful for certain applications but is seldom used by security professionals, simply because it creates a blind spot on each side of the camera. A 3.6mm lens provides the widest viewing angle without distorting the image. There are 180 degree cameras on the market but they distort the video so badly that the video is useless at distance. We do not recommend using any lens wider than a 2.8mm, which provides a viewing angle of 110 degrees. Still, with such a wide viewing angle, do not expect great clarity beyond 40 feet (there is a warping or bubble effect past 40 feet). Because of this, a 2.8mm lens should be used for up close applications - such as a porch or any location where you desire a very wide angle view but do not require great detail at distance.

Back to Back Pattern

Place two cameras back to back mid wall. This design eliminates the blind spots that can occur when using one camera mid wall.

Secret Service Pattern

Two cameras are installed on the same wall, separated by 15-20 feet and aimed towards each other. Basically, the cameras are watching each other’s back so that neither camera can be disabled without the perpetrator being seen. This design works well with both fixed view and zoom lens cameras.

Corner to Corner

This design is the most common and provides several benefits. It makes the most of each camera's viewing capability and covers 100% of the perimeter. When the cameras are placed as the diagram below indicates, all blind spots are eliminated and the cameras cannot be vandalized without the perpetrator being recorded by another camera.

Inside Corner

This pattern is simple and very effective. Because a 3.6mm lens provides a 90 degree field of view, it is perfect for an inside corner. When using this method, the camera cannot be vandalized and the corner is covered wall to wall.

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