XtendLan SDOME4802201, Руководство пользователя

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4.5 Camera Control
4.5.1 Zoom Control
The user can adjust the advanced zoom feature to acquire needed image through control
keyboard. The speed dome features a 216x zoom magnification (18x Optical and 12x Digital).
4.5.2 Focus Control
The speed dome’ s default setting is for auto-adjust focusing. Under special conditions, a user can
adjust the focus manually meet the required image effect.
a. The object is not on the center of the picture.
b. Attempting to view images that are far and near at the same time
c. Object is strongly lighted object, such as neon lamp, focus lamp and etc.
d. Objects behind the glass covered by beat and dust.
e. Objects moving quickly
f. Objects within large area and single color such as wall
g. Objects that are too dark or faint
4.5.3 Iris Control
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The speed dome’ s default setting is for auto-adjust iris. It can make an adjustment
quickly through auto detecting the beam change.
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User can adjust iris size manually through control keyboard to get required image
brightness.
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User can renew auto iris after moving the joystick or sending additional commands
through the controller (Attn: Suggest users to use auto iris).
Remark: When controlling the iris manually, the dome locks in its current control position and will
not reset the auto-iris even if current object changes. You need to move the joystick or send control
order to reset the auto iris.
4.5.4 Auto Backlight Compensation
Camera is divided into six areas to realize auto backlight compensation. In lighting conditions
where a strong backlight exists, the speed dome will adjust the light levels relative to the
foreground and background objects in order to achieve the highest resolution image. The
camera is divided to 6 zones to best handle these unique lighting conditions.
4.5.5 Auto White Balance
The speed dome will automatically adjust the white balance to contrast the changing
background lighting conditions to achieve the truest digital color image.