User manual

Megapixel Cameras and Surveillance Software User Manual
CBC (America) Proprietary Information p.18
Exposure
 “Auto exposure On/Off” is an option to
enable/disable the on-camera automatic
exposure computation. Auto exposure
maintains the target image brightness under
changing lighting conditions.
Exposure is a lower-level menu to adjust
exposure related settings:
• “Illumination” is a group of options to adjust
camera’s white balance computation to the
illumination of the scene. “Automatic”
enables the camera to adjust for illumination
automatically.
 “Lighting” is a group of options to adjust
camera’s auto exposure computation to the
oscillation frequency of the indoor lighting:
European (50 Hz) or US/Japan (60 Hz).
 “Low Light Mode” is a group of options to
adjust camera’s operation under low light
conditions:
a. “High Speed” is to enable the shortest
exposure time, selectable from a drop-
down list “Short Exposure” between 1
and 10 ms, and the maximum frame
rate. This option will reduce motion
blur, but may result in a noisier
b. “Speed” is to enable short exposure
time not exceeding 10 ms by raising
video gain as much as possible unless
the low light conditions require a
further time increase (up to 80 ms).
c. “Balanced” is to enable medium-
duration exposures up to 20 ms by
raising video gain as much as possible
unless the low light conditions require a
further time increase (up to 80 ms).
d. “Quality” is to enable longer exposures
up to 40 ms, by raising video gain as
much as possible unless the low light
conditions require a further time
increase (up to 200 ms). Motion blur
may become high, but video will
contain less noise under low light
conditions.
e. “Moon Light ™ is to enable very long
exposures up to 500 ms if necessary.