Specifications

If there are more filters in the camera than the configuration file describes,
another filters will be added with undefined name. And if the configuration
file describes more filters than the number of filter in the camera, last
descriptions will be omitted.
Using of multiple configuration files for different cameras
It is sometimes necessary to work with multiple cameras, sharing single
driver on the computer (whole series of Gx cameras share 'gusb.dll' or
'gxeth.dll' drivers). If multiple cameras have different filter wheels with
different filters, it is rather complicated to adopt the 'gxusb.ini'
configuration file to currently connected camera. If there are multiple
cameras connected at once, adopting of configuration file is not possible.
This is why SIPS camera drivers (and also camera drivers for other
programs) introduced enhanced naming convention of driver configuration
file. Every Gx series camera has unique identification number, stated on the
camera shell (this number is also displayed in the list of all connected
cameras in the SIPS “CCD Camera” tool). Camera driver tries to open
configuration file, which name is extended with the camera ID number. If
for instance camera ID is 1234, driver first tries to open configuration file
named 'gxusb.1234.ini'. Only is such file does not exists, general
configuration file 'gxusb.ini' is used. So it is possible to create separate
configuration files describing filters in every connected camera.
Cropping of the CCD area
G3 and G4 camera drivers are able to crop the image matrix even before the
image is passed to SIPS. Although it is possible to define sub-frames
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Illustration 9: Filters
offered by the CCD
Camera tool