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Users can adjust the Focal-length through controlling the keyboard to get panoramic view or close view that they
desire.
Focus Control
The system takes auto-focus as the default. While moving, the camera module can automatically focus on the center
of the object view to get clear image. Under special circumstances, the user can manually adjust the focus to achieve
desired image effect.
● Manual focus can be realized through controlling the keyboard or matrix. For details, please refer to the operation
manual of the controlling keyboard or matrix.
● In the state of manual focus, the user can control focal–length to make the lens focus on the object. If the IR Low-speed
Dome Camera is configured to automatically resume auto-focus upon joystick operation, when there is operating on the
joystick, the IR Low-speed Dome Camera will automatically focus. If a period of time is configured for auto-focus resuming,
once there is no controlling order received, after the period of time, the IR Low-speed Dome Camera will resume
auto-focus.
Under the following circumstances, the camera module can not carry out auto-focus:
● When the object is not in the center of the view.
● When simultaneously observe a far object and a near one, clarity for both of the images can not be guaranteed at the
same time.
● When observing objects with extreme brightness, such as neon lights, spotlight, etc
● When the object is behind the glass with water drops or dust
● When the object moves very fast
● When the object is large-sized and drab, such as wall
● When the object is too dark or fuzzy
Iris Control
● The system takes auto-iris as the default. The iris can automatically sense the change of the environmental light and
make quick adjustment, so that the brightness of the image is stable.
● The user can manually adjust the iris through controlling the keyboard to obtain desired brightness for the image.
12. Automatic Back Light Compensation (BLC)
Automatic Back Light Compensation can be realized via district dividing. In extremely bright background, the camera
module can compensate the brightness of the relatively dark objects, while adjust the light of the bright background,
avoiding that the whole image is too bright to watch due to the too high brightness of the background while the object is
too dark to be distinguished, so that the clear image can be got.
13. Automatic White Balance
According to the ambient brightness, the camera module can automatically adjust the White Balance to re-display the
real color.
