Mitsubishi Electric NM-C150SD Installation And Operation Manual page 36

Low Shutter
Setting used to improve the quality of video obtained in extreme low-light situations. When the Low
Shutter setting is enabled, low-light information is collected over multiple fields based on the
Shutter Limit setting. As a result, video may appear blurred or choppy in extreme low-light
situations. This setting does not effect camera operation in normal lighting situations. See also
Automatic Gain Control (AGC).
Preset
Programmed video scene, based on a specific pan, tilt, zoom, and focus settings. Up to 80 presets
may be programmed for the network dome camera.
Privacy Zones
Masked areas of the network dome camera's viewing area. These masks prevent operators of the
surveillance system from viewing these designated zones. The Privacy Zones move in relation to
the network dome camera‟s pan/tilt position. In addition, the apparent size of the Privacy Zone
adjusts automatically as the lens zooms in or out. Up to eight Privacy Zones may be established for
a network dome camera.
Shutter Limit
Setting used to define the maximum exposure time for the Open Shutter setting. The values for the
setting range from 1/2 to 1/60. The default setting is 1/4.
Vector Scan
Move from start point to end point including tilt and zoom simultaneously and linearly.
WDR
Wide Dynamic Range Technology uses two shutter speeds in alternative video fields-high and
normal- every 60th (or 50th) of a second and combines two fields into one progressive scan frame.
It allows every detail to be captured accurately even if one portion of an image is brilliantly.
Whether at the high shutter speed or normal shutter speed, the progressive scan CCD provides a
horizontal resolution of 470 lines. As a result, combined fields yield a frame of high-quality images.
White balance
Adjustments in the color hue(red and blue) gains for a camera so that true white appears white in
the image. It is normally compensated for by the automatic gain control. In some lighting conditions,
you may need to manually adjust the red and blue settings for optimal viewing. When Automatic
White Balance is enabled, the camera measures the image and automatically adjusts the red and
blue settings to balance white. When Automatic White Balance is disabled, the camera uses the
values set for the red and blue settings to balance white.
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