LT Security PTZ217X12 User Manual - Manual (Page 11)

User Manual of 4-inch High Speed Dome
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and panorama scanning. The scanning speed can be set by OSD menu from level 1 to 40, with the
corresponding speed ranging from 1°/second to 40°/second.
Preset Freeze Frame
This feature freezes the scene on the monitor when going to a preset. This allows for smooth
transition from one preset scene to another and also guarantees that masked area will not be
revealed when going to a preset.
Presets
Each of the user-definable presets can be programmed to use pan, tilt, camera settings and other
settings. When preset is called, the dome will automatically move to the defined position. User is
allowed to add, modify, delete and call each preset.
Label Display
The on-screen label of the preset title, azimuth/elevation, zoom and other operations can be
programmed by menu and displayed on the monitor.
Auto Flip
In manual tracking mode, when a target object goes directly beneath the dome, the dome will
automatically rotate 90 degrees in horizontal direction to maintain continuity of tracking.
Privacy Mask
The privacy mask allows a user to program user-defined areas that cannot be viewed by the
operator of the dome system. A masked area will move with pan and tilt functions and
automatically adjust in size as the lens zooms telephoto and wide.
3D Intelligent Positioning
The speed dome can be controlled with the 2 buttons and scroll of mouse can be used under
PRIVATE-Code protocols with devices and client software. Click on a certain area and the device will
move to the scene with corresponding point as the center. When a rectangular area is selected by
left-clicking the mouse, device will move to its center and enlarge it. With right-clicking, the lens will
zoom in, and the scroll can easily make the lens zooming, and mouse operation automatically
incorporates zooming effect.
Proportional Pan
Proportional pan automatically reduces or increases the pan and tilt speeds in proportion to the
amount of zoom. At telephoto zoom settings, the pan and tilt speeds will be slower for a given
amount of joystick deflection than at wide zoom settings. This keeps the image from moving too fast
on the monitor when there is a large amount of zoom.
Auto Focus
The auto focus enables the camera to focus automatically to maintain clear video images.
DAY/NIGHT Auto-switch
The speed dome delivers color images during the day; as light diminishes at night, it switches to
night mode and delivers black and white images with high quality. You can also switch it to NIGHT
mode manually to increase the sensitivity in low light conditions.
Slow Shutter
Slow shutter is the function of extending the exposure time to accumulate more light when the light
condition is low. Thus, the image can be brighter.
Backlight Compensation (BLC)
If the speed dome focuses on an object against strong backlight, the object will be too dark to be
seen clearly. The BLC function can compensate light to the object in the front to make it clear, but