Standard Features; Gain - Basler GIGE VISION ace acA640-100gm/gc Manual

10 Standard Features

This chapter provides detailed information about the standard features available on each camera.
It also includes an explanation of their operation and the parameters associated with each feature.

10.1 Gain

The camera's gain setting is adjustable. As
shown in Figure 51, increasing the gain
increases the slope of the response curve for
the camera. This results in a higher gray
value output from the camera for a given
amount of output from the imaging sensor.
Decreasing the gain decreases the slope of
the response curve and results in a lower
gray value for a given amount of sensor
output.
Increasing the gain is useful when at your
brightest exposure, a gray value lower than
255 (in modes that output 8 bits per pixel) or
4095 (in modes that output 12 bits per pixels)
is reached. For example, if you found that at
your brightest exposure the gray values
output by the camera were no higher than
127 (in an 8 bit mode), you could increase the
gain to 6 dB (an amplification factor of 2) and thus reach gray values of 254.
Basler ace
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Gray Values
(12-bit) (8-bit)
Sensor Output Signal (%)
Fig. 51: Gain in dB
Standard Features
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