Basler ace acA640-90gm - Setting the Gain

Standard Features
186 Basler ace GigE
10.1.1 Setting the Gain
All Models Except the acA2500-14
The camera’s gain is determined by the value of the Gain Raw parameter. Gain Raw is adjusted on
an integer scale. The minimum setting varies depending on the camera model and on whether
vertical binning is enabled (see Table 12). The maximum setting depends on whether the camera
is set for a pixel data format that yields 8 bit effective pixel depth (Mono 8, Bayer BG 8, YUV 4:2:2
Packed, YUV 4:2:2 (YUYV) Packed) or yields an effective pixel depth of 12 bits per pixel (Mono 12,
Mono 12 Packed, Bayer BG 12, Bayer BG 12 Packed).
.
To set the Gain Raw parameter value:
 Set the Gain Selector to Gain All.
 Set the Gain Raw parameter to your desired value.
You can set the Gain Selector and the Gain Raw parameter value from within your application
software by using the Basler pylon API. The following code snippet illustrates using the API to set
the selector and the parameter value:
Camera.GainSelector.SetValue( GainSelector_All );
Camera.GainRaw.SetValue( 400 );
This section (Section 10.1) describes how gain can be adjusted "manually", i.e.,
by setting the value of the Gain Raw parameter.
The camera also has a Gain Auto function that can automatically adjust the gain.
Manual adjustment of the Gain Raw parameter will only work correctly if the
Gain Auto function is disabled.
For more information about auto functions in general, see Section 10.9 on
page 211.
For more information about the Gain Auto function, see Section 10.9.2 on
page 218.
Camera Model Min Setting Min Setting with
Vertical Binning
(mono cameras)
Max Setting
(8 bit depth)
Max Setting
(12 bit depth)
acA640-90gm/gc 190 100 1023 400
acA640-100gm/gc 100 100 1023 600
acA750-30gm/gc 0 NA 1023 600
acA1300-30gm/gc 300 200 850 400
acA1600-20gm/gc 230 220 850 400
Table 12: Minimum and Maximum Allowed Gain Raw Settings