XX134-44-02 Rev 710 SurveyorVFT Camera Dome Programming Programming Menus • 9
If the SurveyorVFT is equipped with a 23X/35X Infra-Red (IR) NTSC or PAL
version camera, the Night Mode Control menu will appear (see Menu example).
This menu allows configuration of the IR lens. The IR lens is a mechanically driven
lens that is used to optimize the image at low light levels or during night hours.
When Mode “DISABLED” is chosen, the IR capability is completely disabled.
When one of the “AUTO” options is selected, the lens senses when the IR filter is
needed and will operate at a low, medium, or high relative light level. When the
“AUX6-Manual” option is selected, the lens is only manually operated using the
Auxiliary 6 function. Night Color options allow the image to be black-and-white or
color in low light conditions. When “DISABLED,” it will be in black-and-white. There
is also an option for tuning the IR Frequency Response for specific IR lighting by
choosing a setting of default (normal light), 850 nm or 950 nm. This is used to
optimize the video intensity when IR lighting is used. The Wide Dynamic Range
menu offers a DISABLED (default) or ENABLED mode. When enabled, the
camera will be able to view a wider difference in light levels in the same scene, for
example, if a shady area and a bright light area are in the same scene.
Note: The SurveyorVFT must be set in an Auto Shutter mode in the Shutter
Speed menu for Wide Dynamic Range or any Auto Night Mode levels to
operate.
Note: Wide Dynamic Range and Backlight Compensation cannot be
enabled at the same time.
The SurveyorVFT 35X model features image stabilization. The Image
Stabilization menu offers a DISABLED (default) or ENABLED mode. When
enabled, the 35X camera eliminates shaking when zooming in on the image.
Note: If image stabilization is ON, Motion Detection can not be enabled and DSS
is not available.
Focus Mode allows the autofocus feature to be toggled AUTO or MANUAL
(default is AUTO). However, the most practical way to disable autofocus is to
press either of the Focus buttons on the keyboard. This will temporarily disable
focus until the camera is zoomed in or out again. When the camera is locked on a
subject, autofocus may be disabled in this manner to prevent it from “hunting”
when someone or something temporarily moves in front of the subject. Hunting
occurs when autofocus is enabled and an object moves closer into the field-of-
view, causing the focus to change from the current image to the new object.
Preset targets do not use autofocus for this reason. Therefore, if a target is
programmed out of focus, it will be out of focus each time that preset is called.
For 23X/35X cameras, in night mode only, focus mode automatically switches to
AUTO when a preset is solved.
On 35X models, for Focus Mode-Auto, there is a choice of Fast AF or Slow AF;
the default is Fast AF. If hunting occurs using Fast, select Slow AF.
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