Product specifications

If the SurveyorVFT is equipped with a 23x 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 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.
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 cameras in night mode, focus mode automatically switches to AUTO when
a preset is solved.
8 XX134-40-00 Rev 104 SurveyorVFT Camera Dome Programming