User`s manual

Introduction
1-4 Basler A500k
PRELIMINARY
1.3 Digital Responsivity
The specified digital responsivity is obtained if the gain is set to 98. In addition, the output depends
on the register setting for the digital shift. The values given are typical values which can vary
between different cameras:
For digital shift = 0: 400 DN/lx s @ 550 nm
For digital shift = 1: 800 DN/lx s @ 550 nm
For digital shift = 2: 1600 DN/lx s @ 550 nm
For digital shift = 3: 3200 DN/lx s @ 550 nm
LSB = least significant bit
See section 3.6.1 for the formula.
Example:
If the gain is set to 98, if digital shift is set to 0, and the quantity of light of 1 lux-sec has hit the
sensor, a gray value of 400 is output.
The quantum efficiency of the sensor is shown in Figure 1-1.
Figure 1-1: Spectral Response for A500
k Cameras
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