Basler L100k User Manual page 57

Shift Twice
When the camera is set to shift twice, the output
from the camera will include bit 7 through bit 0
from each ADC along with two zeros as LSBs.
The result of shifting twice is that the output of the
camera is effectively multiplied by four. For
example, assume that the camera is set for no
shift, that it is viewing a uniform white target, and
that under these conditions the reading for the
brightest pixel is 100. If you changed the digital
shift setting to shift twice, the reading would
increase to 400.
Note that if bit 9 or bit 8 is set to 1, all of the other bits will automatically be set to 1.
This means that you should only use the shift twice setting when your pixel readings
in 10 bit mode with no digital shift are all below 256.
Since the shift twice setting requires that the two least significant bits are always
"0" and never "1", the gray value scale will only include every 4th gray value. For
example, 4, 8, 16 and so forth.
Shift Three Times
When the camera is set to shift three times,
the output from the camera will include bit 6
through bit 0 from each ADC along with
three zeros as LSBs.
The result of shifting three times is that the
output of the camera is effectively multiplied
by eight. For example, assume that the
camera is set for no shift, that it is viewing a
uniform white target, and that under these
conditions the reading for the brightest pixel
is 100. If you changed the digital shift setting
to shift three times, the reading would
increase to 800.
Note that if bit 9, bit 8 or bit 7 is set to 1, all of the other bits will automatically be set
to 1. This means that you should only use the shift three times setting when your
pixel readings in 10 bit mode with no digital shift are all below 128.
Since the shift three times setting requires that the three least significant bits are
always "0" and never "1", the gray value scale will only include every 8th gray value.
For example, 8, 16, 24 and so forth.
BASLER L100
k Series
DRAFT
bit bit
9 8
bit bit bit
9 8 7
Operation and Features
ADC
bit bit bit bit bit bit bit
7 6 5 4 3 2 1
M
S
B Shifted Twice
ADC
bit bit bit bit bit bit bit
6 5 4 3 2 1 0
M
S
B
Shifted 3 Times
bit
"0" "0"
0
L
S
B
"0" "0" "0"
L
S
B
3-25