Quasar CB-6204 User And Installation Manual page 119

Quasar CB-6204/CB-6208 User and Installation Guide
P-Iris Priority Mode
In P-iris Priority mode, the iris does not adjust, regardless of the light level. If, however, the light
level goes below the P-iris setting, the iris will fully open in a single step if the Auto Adjustment
option is turned on.
The following setting are available:

Iris Size Setting – Select the following buttons
The minus (-) button closes the iris.
The plus (+) button opens the iris.
The reset button is for resetting the P-iris
The radial button is for automatically selecting the optimal iris exposure

Auto Adjustment – From the drop-down menu, select On or Off. When enabled, if the
lighting level falls below the set P-iris level, the iris will jump to its fully-opened position.

Min Shutter Speed – When selecting this mode, the camera's shutter speed automatically
achieves a consistent video output level. Users can select a suitable shutter speed according
to the environmental luminance.
The shutter speed range is selectable on the drop-down menu from 1/4 to 1/500 sec (NTSC)
and 1/3 to 1/425 sec (PAL). The following table lists the options.
Click SET when you finish configuring the settings.
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P-Iris Priority –
Min Shutter Speed
PAL NTSC
1/425 1/500
1/300 1/350
1/215 1/250
1/150 1/180
1/120 1/120
1/100 1/100
1/75 1/90
1/50 1/60
1/25 1/30
1/12 1/15
1/6 1/8
1/3 1/4