AP-1600T-USB | AP-3200T-USB | User Manual (Ver. 2.0)
Main Functions
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ALC (Automatic Level Control)
Related Setting Items:
The ALC (automatic level control) function combines the automatic gain control (AGC/Auto Gain
Control) and automatic exposure control (ASC/Auto Shutter Control) functions, and is capable of
handling various changes in brightness. The function operates as follows in response to changes in
brightness.
l
Change from bright to dark: ASC - AGC
l
Change from dark to bright: AGC - ASC
To Use the ALC Function
1. Set
GainAuto
) or
ExposureAuto
) or both to
Continuous
mode.
2. Set the channel to be used as a reference in
ALCControlReference
(Peak Channel or Selected
Channel). If set to
Selected Channel
, also configure
ALCControlChanel
(
Red
,
Green
or
Blue
).
3. Set the AGC and ASC reference levels in
ALCReference
. For example, if ALCReference is set to 95%,
AGC and ASC will maintain video levels at 95%.
4. If necessary, specify the photometry area in
ALCAreaSelector
and set
ALCAreaEnable
to
True
.
5. Set the maximum and minimum values for AGC and ASC (
AutoShutterControlExposureMin/Max
,
AutoGainControlGainRawMin/Max
).
6. Set the ALC control speed in
ALCControlSpee
d (1 ~ 8).
7. You can confirm the ALC operation status using
ALCStatus
and
ALCControlStatus
.