Exposure - Q-See SDI Cameras User Manual

LENS
This feature is for use on cameras using DC (Defocus Control) lenses. Neither the default setting, Manual, nor the DC setting will have
any effect upon your camera.

EXPOSURE

This selection includes several submenus which cover how your
camera handles different lighting conditions and levels.
Shutter
This adjusts the shutter speed from 1/30 to 1/10,000 second (up to
1/50,000 of a second on some models) with the video's light level
getting darker as the speed increases. In areas which are constantly
brightly lit, you will want to use a faster speed. There is also an
FLK setting to reduce flicker or camera rolling - especially in areas
illuminated by fluorescent light. The 2x setting is a Digital Slow Shutter (DSS) format which improves the light sensitivity of the camera
by allowing two times the normal amount of light into the camera, extending its usable range in low light conditions.
AGC
AGC, or Automatic Gain Control, is primarily used to increase the brightness of the video image when the area is poorly lit.
Settings range from 0 to 16 with the default being 6. Use of this feature can increase the "noise" in the video signal as the camera
compensates.
Sens-Up
This technology also allows the camera to better use available light in order to provide a clear image. It does so by increasing the time
that the shutter is open in order to gather more light. You can set this between 2x and 10x. The drawback is that motion will become
increasingly blurry and this is specifically recommended against if the camera is being used to capture a license plate or other
identifying detail. Please note that this feature is disabled when the shutter speed (above) is set to anything other than Auto or 1/30.
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EXPOSURE
SHUTTER AUTO
AGC 6
SENS-UP OFF
WDR OFF
DEFOG OFF
BACKLIGHT OFF
RETURN RET
WDR
Wide Dynamic Range, or WDR, is a process where the camera
captures an image both with short and a long exposure in order
to balance the darker areas with the brighter, highlighted areas
to maximize the visibility of details in both areas. It differs from
Backlight Compensation (discussed later) in that the camera
attempts to adjust the contrast in both areas. This is best used in
areas with uneven lighting. The settings are High, Medium and Low. This option may also be disabled depending on your Exposure
settings.
Defog
For use in areas frequently obscured by haze or fog, the Defog filter adjusts the camera's contrast in order to provide clearer details.
This can also be used when the subject is very brightly lit. You can set it to High, Medium or Low.
Backlight
This selection consists of two submenus which allow you to
optimize camera performance in areas which are lit from behind.
BLC stands for Back Light Compensation. This first option
is designed for areas such as a room where the camera
faces a window through which sunlight enters. It allows you
to compensate using low, middle or high gain which will
progressively brighten the area on the screen to compensate for
the relative darkness of the area lit from behind. You can adjust
the size of the area, along with its position from within the Area option. Pushing up or left will shrink the area, while down or right will
enlarge it. It can then be positioned as desired.
HSBLC, or High Spotlight Back Light Compensation is for
situations where lights will be shining towards the camera. This
is the setting used when trying to capture images of license
plates for identification. As seen in the photos on the right, the
brightest light sources are blocked by the camera allowing the
plate to be read as opposed to washed out by the headlights.
Please see our online knowledge base at www.Q-See.com/
Support for guides on how to best capture license plate images.
WDR Off WDR On
BLC BLC
GAIN GAIN MIDDLE MIDDLE
AREA AREA ON ON
DEFAULT DEFAULT
RETURN RETURN RET RET
HSBLC Off HSBLC On
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