Exposure - Quasar CP-3211 User And Installation Manual

Quasar CP-3211/CP-4221 User and Installation Guide

7.5.8 Exposure

The exposure is the amount of light received by the image sensor and is determined by the width of
the lens diaphragm opening, the amount of exposure by the sensor (shutter speed), and other
exposure parameters.
Exposure settings on all units except CP-4221-301
For all units except the CP-4221-301, on the Exposure page, users can select either Full Auto mode
or adjust the parameters of the Shutter Priority or Iris Priority. Users can also select Manual mode
for optimized video output in accordance with the operating environment.
Figure 102: Exposure Screen (all units except CP-4221-301)
Auto Mode Max Gain
From the drop-down list, set the gain (from Off to 57dB in 3dB steps).
Full Auto Mode
If Full Auto is selected, exposure parameters are set automatically. From the drop-down list, select
the minimum shutter speed (Off, 1/12, 1/6, 1/3, 1/1.5, or 1).
Shutter Priority Mode
When selecting this mode, a fixed shutter speed is set, while iris and gain vary automatically
accordingly. From the drop-down list, select a shutter speed from 1/10000 to 1/25.
Iris Priority Mode
In this mode, the iris value is fixed, while gain and shutter speed vary automatically accordingly. In
this mode, the iris value is fixed, while gain and shutter speed vary automatically accordingly. The
value of iris is adjustable from F1.6 to F28. Set the minimum shutter speed.
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