HIKVISION DS-2AF1-764 User Manual page 16

5-i nch High Speed Dome User Ma nual
MF (Manual Focus): Lens focus is operated manually.
HAF (Half-auto Focus): The lens remains at a fixed focus point when PTZ movements stop;
when the PTZ movements are resumed, the lens will focus automatically.
(3) Click IRIS+ button to confirm.
 Setting the focus limit
Purpose:
Focus limit is the focal length limit of the speed dome. You should configure the focus limit
longer when the target is at a distance, to avoid the speed dome focusing on the objects close to
it; or configure the focus limit shorter when the target is near the speed dome, and avoid it
focusing on the objects father.
You can set FOCUS LIMIT as 1CM (default), 30CM, 1M or 3M to make sure that the speed dome
focuses on the target; when you set it as AUTO, the focus limit will automatically change
according to the lens zooming.
3. Configure the Iris, gain and shutter speed.
 Setting the AE mode
Purpose:
AE mode defines the priority of iris, shutter and gain while the speed dome adjusting the
brightness of the live view. You can change the mode on AE MODE submenu.
AUTO: Auto iris, auto shutter and auto gain. The speed dome adjusts the values automatically
responding to the lighting conditions. It is the default mode.
IRIS: User-defined iris value, auto shutter and auto gain. It is the iris-priority mode. Please
define the iris value according to related content in this section if you choose IRIS mode.
SHUTTER: User-defined shutter speed, auto iris and auto gain. It is the shutter-priority mode.
Please define the shutter speed according to related content in this section if you choose
SHUTTER mode.
MANUAL: User-defined iris, gain and shutter. Please define the iris value, gain value and shutter
speed according to related content in this section if you choose MANUAL mode.
 Setting the iris value
Purpose:
The IRIS value measures the amount of light entering to the lens. You can set the iris value from
0 to 13 in response to the changing light conditions.
Note: Iris is fully closed at value 0 and fully open at value 13.
 Setting the gain
The value of gain indicates the amplification degree of the original image signal. You can set the
value from 0 to 15.
 Setting the shutter speed
Purpose:
The speed of the electronic shutter controls the amount of light entering to the lens in a unit of
time (a second). You can manually configure the shutter speed for the speed dome, and you can
also enable the slow shutter function for low lighting circumstances.
(1) Shutter speed. If you set the SHUTTER value bigger (shutter speed is faster), the amount of
entering light per second is fewer, and the image is darker. You can set it as 1, 2, 4, 8, 15, 30,
50, 125, 180, 250, 500, 1000, 2000, 4000 or 10000.
Note: The value of X indicates that the shutter speed is 1/X second.
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