User`s manual

REDLAKE MASD, INC.
3.4.12 Black Level
The black level control functions much like the brightness control on a television set. The fixed
video black level is set at the factory so that the output video is just above the black clipping level
with the lens capped. The black level can be varied over a range of plus or minus 50 percent of
peak white video.
TYPE IN: RESPONSE EXPLANATION
BKF
CR-LF Sets the black level to an internal fixed value of
approximately 10 counts above zero.
BKE xxxx
CR-LF Sets the black level with xxxx ranging from 1365 to
–2730.
BKE?
Queries the current black level setting.
BKF Means the black level is at the factory preset level.
BKE xxxx Means the black level is set to the value indicated.
NOTE: The video will be clipped to zero counts until it overcomes a negative offset. The video
will be shifted towards white by a positive offset.
3.4.13 Black Level Balance
The black level of the two output video channels must be closely matched to minimize line-to-line
shading. The black level balance command adjusts the black level of one channel with respect to
the other. The adjustment range is from –128 to 127. With the camera in dual channel readout
operation and the lens capped observe the video monitor and change the black level balance
until you are satisfied with the pictures that you see.
TYPE IN: RESPONSE EXPLANATION
BKB xxxx
CR-LF Sets the black level of one channel with respect to
the other where xxxx ranges between –128 and
127.
BKB?
Queries the current black level balance setting.
Sample Commands with Arguments:
BKB 0 Sets the black level balance to a value of 0.
BKB -100 Sets the black level balance to a value of -100.
BKB 30 Sets the black level balance to a value of 30.
NOTE: This command is not applicable for single channel model, MegaPlus Model 1.0/SC.
91000064-004 Revision A 3-8 8/29/01