StarDot Technologies netcam XL - Manual (Page 14)

Page 14 NetCam XL
the image exposure based on the overall brightness of the image. The
following functions are only implemented when Auto Exposure is
enabled.
• Brightness - The higher the number, the brighter the picture. This
is the target for the auto exposure code.
• Exposure Limit - The camera will not expose the image sensor
above this value. The default is 32767, about 1.5 seconds). If you
see a lot of pixel noise on your image at night, consider limiting this
value (other options related to image noise are AGC and Low Light).
• Sync- Fluorescent lighting refreshes at 60Hz or 50Hz, depending
on what country you live in. This may interfere with the camera’s
exposure. Set the sync to the appropriate value for your area
(example: U.S. is 60Hz). If you are pointing the camera outdoors or
do not use fluorescent lighting, you may turn this option off.
• Allow Extended Exposures - In darker lighting conditions, a
longer exposure produces a brighter image. A longer exposure also
produces an image where objects in motion may appear blurry. If
your application requires the best possible image quality and motion
blur is not a concern, enable Allow Extended Exposures and set the
Exposure Limit to a high value (up to 32767). If your application
requires capturing images of people or objects in motion, disable
Allow Extended Exposures.
• Automatic Gain Control (AGC) - The picture is digitally
amplified in low light conditions or in situations where the exposure
is limited to reduce motion blur. Enabling AGC may introduce image
noise.
• AGC Limit - The higher the limit, the more digital amplification
occurs (assuming it’s necessary). If you want to limit the digital gain
to reduce noise on the image, reduce this value.
• Low Light - In low light conditions, the analog low light mode of
the image sensor is enabled. Enabling Low Light may introduce
image noise.
• Back Light - BLC, or backlight compensation, adjusts the picture
in situations where a bright light source, such as window, is causing
the image to be improperly exposed.
• Back Light - Backlight compensation (BLC) adjusts the picture in
situations where a bright light source, such as window, is causing the
image to be improperly exposed.
• Auto Iris- Only enable this option if a DC Auto Iris lens is
connected into the camera. If your camera does have a DC Auto
Iris lens connected, you must enable this option when the camera is
pointing outdoors.