User`s manual

Features
124 Basler aviator Camera Link
7.8.4 Gain Auto
Gain Auto is is the "automatic" counterpart to manually setting the Gain Raw All. When the gain
auto function is operational, the camera will automatically adjust Gain Raw All within set limits until
a target average gray value for the pixel data from Auto Function AOI 1 is reached. (Automatic
adjustments for Gain Tap 1, Gain Tap 2, Gain Tap 3, and Gain Tap 4 are not available.)
The gain auto function can be operated in the "once" and the "continuous" modes of operation.
If Auto Function AOI 1 does not overlap the Image AOI (see the "Auto Function AOI" section) the
pixel data from Auto Function AOI 1 will not be used to control the gain. Instead, the current manual
setting for Gain Raw All will control the gain.
The gain auto function and the exposure auto function can be used at the same time. In this case,
however, you must also set the auto function profile feature.
For more information about the "manual" gain settings, see Section 7.3 on page 104.
For more information about the auto function profile Section 7.8.6 on page 130.
The limits within which the camera will adjust the Gain Raw All are defined by the Auto Gain Raw
Upper Limit and the Auto Gain Raw Lower Limit parameters. The minimum and maximum allowed
settings for the Auto Gain Raw Upper Limit and Auto Gain Raw Lower Limit parameters depend on
the current pixel data format, on the current settings for binning, and on whether or not the
parameter limits for manually setting the gain feature are disabled.
The Auto Target Value parameter defines the target average gray value that the gain auto function
will attempt to achieve when it is automatically adjusting the Gain Raw All. The target average gray
value can range from 50 (black) to 205 (white) when the camera is set for 8 bit output. When the
camera is set for 10 bit output, the target gray value can range from 200 to 820. And when the
camera is set for 12 bit output, the target gray value can range from 800 to 3280.
Note that on cameras delivered from the factory, the exposure auto, gain auto, and
white balance auto (on color cameras) functions will all become enabled
whenever you power on or reset the camera. This behavior happens due to the
way that the camera’s configuration sets are set in the factory. More specifically, it
happens because the auto functions factory setup is selected as the default
configuration set and the default configuration set is designated as the "startup"
set. To change this behavior, you must change the configuration set settings. For
more information about configuration sets, see Section 7.19 on page 170.