Setting The Exposure Time - Basler Camera User Manual

Image Acquisition Control
6.5

Setting the Exposure Time

This section (Section 6.5) describes how the exposure time can be adjusted
"manually", i.e., by setting the value of the exposure time parameter.
The camera also has an Exposure Auto function that can automatically adjust the
exposure time. Manual adjustment of the exposure time parameter will only
work correctly, if the Exposure Auto function is disabled.
For more information about auto functions in general, see Section 8.11 on
page 209.
For more information about the Exposure Auto function in particular, see
Section 8.11.5 on
All Models Except the acA1920-25um/uc, acA2500-14um/uc, acA3800-14um/uc,
acA4600-10uc
If you are operating the camera in any one of the following ways, you must specify an exposure time
by setting the camera's Exposure Time parameter:
the frame start trigger mode is set to off

the frame start trigger mode is set to on and the trigger source is set to software

the frame start trigger mode is set to on, the trigger source is set to Line 1, and the exposure

mode is set to timed.
The Exposure Time parameter must not be set below a minimum specified value. The minimum
setting for each camera model is shown in Table 21.
The maximum possible exposure time that can be set (in [µs]) is also shown in Table 21.
Camera Model
acA640-90um/uc
acA640-120um/uc
acA1300-30um/uc
acA1600-20um/uc
acA2000-165um/uc
acA2000-165umNIR
acA2040-90um/uc
acA2040-90umNIR
Table 21: Minimum Allowed Exposure Time Setting, Maximum Possible Exposure Time Setting and Increment
110
page 219.
Minimum Allowed
Exposure Time
17 µs
4 µs
16 µs
25 µs
TBD µs
TBD µs
TBD µs
TBD µs
Maximum Possible
Exposure Time
10000000 µs
10000000 µs
10000000 µs
10000000 µs
TBD µs
TBD µs
TBD µs
TBD µs
AW00123402000
Increment
TBD
TBD
1 µs
TBD
TBD
TBD
TBD
TBD
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