User Manual

VIVOTEK
284 - User's Manual
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154
PARAMETER VALUE SECURITY
(get/set)
DESCRIPTION
zoommodule <boolean> 0/7 Indicate whether to support zoom lens.
In our product, only SD series and IZ
series use the zoom lens.
* Both varifocal and zoom lenses are
built with movable elements that
permit changing the effective focal
length. And the key difference between
a varifocal and a zoom lens can be
explained by thinking about a lens that
has been focused on an object at any
focal length. A varifocal will need to be
refocused whenever the focal length is
adjusted; the zoom will stay in focus
when the focal length is adjusted.
focusmode auto,onetimeauto,sp
otlight,manual
<product
dependent>
0/7 Focus mode selection:
"auto": Camera will automatically
adjust the focus position full time to
adapt a clear picture.
"onetimeauto": Camera will
automatically adjust the focus position
one time, which follows any PTZ
control.
"spotlight": Camera will automatically
adjust the focus position full time, and
to consider a spotlight avoidance
situation.
"manual": Turn off the automatically
focus function. For user to control the
focus position manually as their
purpose.
* Only available when
"capability_camctrl_c<0~(n-1)_zoommo
dule" is 1.
* We support this parameter when the
version number (httpversion) is equal
or
greater than 0304a.