Vivotek IP8336W User Manual download pdf (Page 51)

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User's Manual - 51

Measurement Window: This function allows user to set measurement window(s) for low light

compesation�

■ Full view: Calculate the full range of view and offer appropriate

light compesation�

■ BLC (Back Light Compensation): This option allows you to use the center of the current view

as the measuring area� The measuring window refers to “weighted window“ where the lighting

condition within the particular area is taken into account� Camera firmware then adopts the

weighted averages method to calculate the value and provides necessary light compensation�

Exposure control:

■

Exposure level: You can manually set the Exposure level, which ranges from 0 to 8 (dark to

bright)�

■ Flickerless

: This function helps avoid the flickering on images because of the fast shutter

movement� When selected, the exposure time will be forced to stay longer than 1/120 second�

■ Exposure time

: The Exposure time allows tuning for more or less light to enter the lens. The

congurable value ranges from 1/32000 to 1/5 of a second. An optimum shutter speed should be

maintained as long as the light level of the scene permits�

■

Gain control: Tune the slider bar to set the Gain Control to the best image quality. Higher gain

control value will generate a certain amount of noise, and that the gain control, lighting levels,

and picture performance are closely related�

Note that you can split the round pointers on the Exposure time and Gain control slide bars

into two halves and drag them on the bars to designate a range of values in which rmware can

automatically adapt to� Firmware will then automatically tune the Gain, Exposure time, and Iris

opening within the ranges you specied.

BLC

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Vivotek IP8336W User Manual Page 51