Settings > Camera Setup > Image Enhancement Settings - Digital Watchdog DWC-MV72Wi28TW User Manual

Setup - Camera Setup
Camera Backlight Settings
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This feature is used when lighting conditions may cause detail loss in the camera's view due to high contrast.
WDR (Wide Dynamic Range) - Enable or disable the WDR function.
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Click 'Save' to save all settings.
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Click 'Cancel' to return to the previous setting.
Click 'Default' to settings to the factory defaults.
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