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82 | HDZ Series IP PTZ User Manual
Day/Night Function
The Day/Night function produces clear, accurate images at night or in low-light conditions.
During the day, the camera uses an IR cut filter to filter out infrared (IR) light to ensure an
undistorted color picture. At night, or in low light, the IR cut filter is removed, allowing the camera
to make use of IR light to deliver high-quality black-and-white images. You can select one of the
following Day/Night modes:
Setting the Day/Night Mode
1. Navigate to PTZ Camera.
2. Under Misc (see Figure 5-13), in the Day/Night Function drop-down list, select one of the
following options:
• Auto (default) to switch between day and night modes automatically.
• On to switch to night mode manually.
• Off to switch to day mode manually.
3. Click Set to save the setting.
Wide Dynamic Range
The wide dynamic range (WDR) function produces balanced, evenly lit images when extremely
bright or extremely dark areas are present in a scene.
Setting the Wide Dynamic Range
1. Navigate to PTZ Camera.
2. Under Misc (see Figure 5-14), in the WDR drop-down list, select one of the following:
• On to enable wide dynamic range.
• Off (default) to disable wide dynamic range.
3. Click Set to save the setting.
Table 5-4 Day/Night Modes
Mode Description
Auto (default) The IR cut filter is removed automatically when the image brightness drops
below a certain level.
On Night mode. Removes the IR cut filter.
Off Day mode. Leaves the IR cut filter in place.
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