HIKVISION DS-2TD4136T-25 User Manual page 116

User Manual of Thermal Network Speed dome
The minimum focus value varies depending on the models of speed dome.
Day/Night Switch
 Day/Night Switch
The Day/Night Switch mode can be set to Auto, Day, Night and Scheduled-Switch.
This function varies depending on the models of speed dome.
 Auto:
In Auto mode, the day mode and night mode can switch automatically according to
the light condition of environment.
 Day:
In Day mode, the speed dome displays color image. It is used for normal lighting
conditions.
 Night:
In Night mode, the image is black and white. Night mode can increase the sensitivity
in low light conditions.
 Scheduled-Switch:
In Schedule mode, you can set the time schedule for day mode as shown in Figure
7-44. The rest time out of the schedule is for night mode.
Backlight Settings
BLC (Back Light Compensation)

If there's a bright backlight, the subject in front of the backlight appears silhouetted or
dark. Enabling BLC(back light compensation) function can correct the exposure of the
subject. But the backlight environment is washed out to white.
WDR (Wide Dynamic Range)

The wide dynamic range (WDR) function helps the camera provide clear images even
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Figure 7-43 Auto Mode Sensitivity
Figure 7-44 Day Night Schedule
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