Vivotek SD7323 Specifications download pdf (Page 57)

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User's Manual - 57

Exposure Settings

User can choose Auto, or manually set Shutter Priority, Iris Priority, AGC priority, and BLC�

Auto: Select the sensitivity of IR cut lter (Low, Medium, or High).

The Network Camera automatically adjusts the iris and gain in response to different environments�

Depending on ambient lighting conditions, select either to enable WDR or the back light compensation�

Enable WDR (Wide Dynamic Range): Select this option to enable the WDR function� With WDR, the

Network Camera can cope with very challenging lighting conditions by combining the dark and bright

parts of an image to generate a realistic image representative of what is seen with the human eye� Note

that if you select this function, Back light compensation and Enable image stabilizer will be disabled�

Shutter Priority: Select a proper maximum exposure time according to the light source of the

surroundings� The exposure times are selectable for the following durations: 1/30000 ~ 1/2 second�

Shorter exposure times result in less light�

Select this option to adjust the desired shutter speed and allow the Network Camera to select an

appropriate iris and gain to obtain the correct exposure� Adjust the shutter speed from 1/2 second

(slowest) to 1/30000 second (fastest)�

Iris Priority: Select a proper F-number (F1�4 ~ F32) according to ambient light�

F-number = Focal length / Iris diameter (lens aperture)

The greater the F-number, the shorter the iris diameter, and thus the less light admitted to the sensor�

Therefore, smaller F-number would be recommended for low-light applications�

AGC Priority (Auto Gain Control):

You can manually set the Max gain (0 dB ~ 30 dB)�

Back Light Compensation: Select "ON" and set a level (-5 ~ 5) according to the ambient light�

Day/Night Settings

Switch to B/W in night mode

Select this to enable the Network Camera to automatically switch to B/W during night mode�

IR cut lter

With a removable IR-cut lter and built-in IR illuminators effective up to 15m, this Network Camera can

automatically remove the lter and turn on the IR illuminators to let IR light into the sensor during low

light conditions�

■ Auto

The Network Camera automatically removes the lter by judging the level of ambient light.

■ Day mode

In day mode, the Network Camera switches on the IR cut lter at all times to block infrared light from

reaching the sensor so that the colors will not be distorted�

■ Night mode

In night mode, the Network Camera switches off the IR cut lter at all times for the sensor to accept

infrared light, thus helping to improve low light sensitivity�

■ Schedule mode

The Network Camera switches between day mode and night mode based on a specied schedule.

Enter the start and end time for day mode� Note that the time format is [hh:mm] and is expressed in

24-hour clock time� By default, the start and end time of day mode are set to 07:00 and 18:00�

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Vivotek SD7323 Specifications Page 57

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