HIKVISION N4225IH-DE User Manual page 93

User Manual of Network PTZ Camera

Limit Gain
This feature is used to adjust gain of the image. The value ranges from 0 to 100.

Slow Shutter
This function can be used in underexposure condition. It lengthens the shutter time to
ensure full exposure.

Slow Shutter Level
When slow shutter is set as ON, you can select the slow shutter level from the
dropdown list. The slow shutter lever can be set to Slow Shutter*2, *3, *4, *6, *8.
Focus Settings

Focus Mode
The Focus Mode can be set to Auto, Manual, and Semi-auto.
 Auto:
The speed dome focuses automatically at any time according to objects in the scene.
 Semi-auto:
The speed dome focuses automatically only once after panning, tilting and zooming.
 Manual:
In Manual mode, you need to use

Min. Focus Distance
This function is used to limit the minimum focus distance. The value can be set to 10cm, 50cm,
1.0m, 1.5m, 3m, 6m, 10m and 20m.
The minimum focus value varies depending on different camera models.
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.
© Hikvision
Figure 6-28 Slow Shutter
on the control panel to focus manually.
Figure 6-29 Auto Mode Sensitivity
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