Standard Features AW00089317000
208 Basler ace GigE
10.3 Remove Parameter Limits
For each camera feature, the allowed range of any associated parameter values is normally limited.
The factory limits are designed to ensure optimum camera operation and, in particular, good image
quality. For special camera uses, however, it may be helpful to set parameter values outside of the
factory limits.
The remove parameter limits feature lets you remove the factory limits for parameters associated
with certain camera features. When the factory limits are removed, the parameter values can be set
within extended limits. Typically, the range of the extended limits is dictated by the physical
restrictions of the camera’s electronic devices, such as the absolute limits of the camera’s variable
gain control.
The values for any extended limits can be determined by using the Basler pylon Viewer or from
within your application via the pylon API.
Currently, the limits can be removed from:
The gain feature (except for the acA1920-25 and acA2500-14).
Removing the parameter limits on the gain feature
will remove the lower and the upper limit.
will increase the gain range.
For those cameras where the lower limit is already 0, removing the limits has no effect.
The maximum allowed frame rate on acA640-120 cameras.
Removing the limit on the maximum allowed frame rate will let the camera operate at a higher
than normal frame rate for the current parameter settings.
For more information about
the gain feature, see Section 10.1 on page 197.
the frame rate limit on acA640-120 cameras, see Section 7.12.3 on page 156.
Removing Parameter Limits
1. Use the Parameter Selector to select the parameter whose limits you want to remove.
2. Set the value of the Remove Limits parameter.
You can set the Parameter Selector and the value of the Remove Limits parameter 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:
// Select the feature whose factory limits will be removed.
Camera.ParameterSelector.SetValue( ParameterSelector_Gain );
// Remove the limits for the selected feature.
Camera.RemoveLimits.SetValue( true );
To remove the limits for a parameter:
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