Installation guide

Configuration and Operation

7.5.1 Exposure

The exposure is the amount of light received by the image sensor and is determined by the amount

of exposure by the sensor (shutter speed), and other exposure parameters.

Administrators may either allow the camera to automatically select an exposure level using a

programmed algorithm or choose the level themselves. Even in Auto Shutter, a Minimum Shutter

Speed may be set from the drop-down menu to ensure a maximum level of exposure. In Manual

Mode, the administrator can choose fixed shutter speeds from a drop-down menu. The smaller the

number (the higher the shutter speed) that the administrator selects, the lower the exposure level

and vice versa. Following is an illustration of the Camera menu.

Figure 80: Camera Settings Screen – Exposure

There are two exposure modes: Auto Mode and Manual Mode.

Auto Mode

There are three settings within Auto Mode:

 Auto Iris Min Shutter Speed – When selecting this mode, the shutter is completely open and

the exposure priority is given to the iris. Shutter speed and AGC circuit function

automatically in cooperating with the iris to achieve a consistent exposure output.