Vitek VT-PTZ220HD, Manual

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HD-SDI CAMERA
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Adjustable in MANUAL mode only.
10.4.3 Focus Control
Mode
AUTO:
Automatically adjusts the focus position (passive auto focus).
Sufficient illumination and subject contrast for central measurement area are
required.
The minimum distance (from the front end of the lens) is 1cm at the optical wide
end.
MANUAL:
Recommended in low-light conditions and with low contrast subjects or with
subjects not located in the central measurement area.
ONE PUSH:
Automatic focusing is not carried out until a new trigger command is sent by the
user (e.g. pan, tilt or zoom).
Focus Limit
The near limit can range from about 25m to 1cm
The near limit is the distance the automatic focus control starts to operate from.
Auto focusing is only carried out from the near limit to infinity (
∞ ). Therefore, the
lens takes
less time to find the optimal focus. This can be helpful when capturing moving
objects,
but is not relevant when capturing static objects.
Note that the near limit values will differ due to temperature characteristics, so
FOCUS CONTROL
Mode :AUTO
Focus Limit :30cm
AF Sensitivity :Low
IR Compensation :OFF
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