First Light C-BLUE One, User Manual

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Table 29 - Description of the SFNC registers associated to gain management
Name Access Values Description
GainSelector
RW AnalogAll Gain will be applied to all analog channels or taps.
DigitalAll Gain will be applied to all digital channels or taps.
Gain
RW
0-48 dB
Controls the selected gain as an absolute physical
value. This is an amplification factor applied to the
video signal.
Black level adjustment
The SONY IMX425LLJ-C and IMX426LLJ-C sensors integrate a function of automatic black adjustment
which is an on-chip sensor bias correction. When black level adjustment is enabled, the sensor uses
OB (optical black) pixels as a level reference for black pixels. This reference level is then subtracted to
all other pixels (non OB pixels) to ensure that these pixels return a fixed value when put in the dark.
The control of the black level adjustment is done using standard SNFC
BlackLevelAuto register.
Table 30 - Description of the black level auto adjustment
Name Access Values Description
BlackLevelSelector
RW All
Black Level will be applied to all channels or
taps.
BlackLevel
RW
Controls the analog black level as an
absolute physical value. This represents the
DC offset applied to the video signal.
BlackLevelAuto
RW
OFF Black level adjustment is disabled.
Continuous
The black level adjustment is enabled.
8 bits conversion: black level is set to 15.
12 bits conversion: black level is set to 240.
Note: By default, the value is OFF.
Camera presets
The camera contains factory-defined user sets, corresponding to generic use cases. In addition, C-
BLUE One allows to store up to ten custom user configurations. Using user sets allow to switch easily
from one configuration to another.
The user set management of the camera is compliant with SFNC.
Table 31 – User set control
Name
Access Value
Description
UserSetSelector
RW Default8bits
Default12bits
HighSensitivity8bits
HighSensitivity12bits
UserSet0, …, UserSet9
Selection of the preset