Zavio D7320, Руководство пользователя

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“Cloudy” or “Sun Shade.” You should select the value that best represents the
environment the camera is installed in. You can also leave the default value “Auto,” as it
typically delivers very good results.
Exposure Setting:
Exposure Frequency- There are four values: “Auto,” “50Hz,” “60Hz” and “Hold
Current.” If your camera is installed so that it’s facing outside, you should select “Auto.”
If your camera is installed indoors, you must select the appropriate light frequency
(either 50 or 60 Hz; e.g., in the US select 60 Hz, in Germany, Poland or Italy select 50
Hz). The hold current option fixes the current exposure settings.
Automatic Exposure- You can manually set the exposure value, which ranges from
0-100 (dark to bright). The default value is 25 and typically provides good results.
Exposure Time- You can define the minimum and maximum exposure time of the
camera’s shutter here. We recommend using the smallest exposure time (e.g., 1/10000
sec) for the min value as it ensures the camera will generate crisp images during day
time conditions in which even moving objects appear sharp and in focus. As for the max
value, the bigger the value, the longer the camera keeps the shutter open in low light
conditions allowing more light to fall onto the image sensor. As a result, the camera can
capture images even in very dark environments. The downside is that moving objects
will appear blurred as the move while the camera’s shutter is open.
Gain- The ZAVIO camera is equipped with an electronic gain mechanism which helps
capture image in dark conditions. The higher the gain, the brighter the image, but the
downside is that the image contains more noise.
Low Light Behavior- When enabled, this opens allows additional control over the
camera when it is running in night mode.
Backlight Compensation (BLC)- In images where a bright light source is behind the
subject of interest, the subject would normally appear in silhouette. BLC allows the
camera to adjust the exposure of the entire image to properly expose the subject in the
foreground. The resulting image may appear overexposed in the background; however,
the object of interest is now properly lit.
White Dynamic Range:
WDR stands for Wide Dynamic Range and allows the ZAVIO network camera to capture video
in areas with high contrasting objects; e.g., extremely bright and extremely dark. Activate
WDR by setting it to “Auto” and then adjust the level that controls the amount of WDR
enhancement.
Noise Reduction:
Your ZAVIO camera features a noise reduction algorithm, which helps reduce the graining in
the video, which occurs under low light conditions. Set this parameter to “Night Mode” to only
activate noise reduction when the camera is operating in night mode. You can also select