Outer dimensions of the XS external filter wheel are the same, only
the wheel itself holding filters contains 8 positions for unmounted
D31 mm filers or filters in standard
1.25" threaded cells (the same filters can be used in
the G2 camera internal filter wheels, containing just 5
positions).
G2 camera head with XS filter wheel attached
It is not recommended to combine the external filter wheel with
D31 mm filters with G2-8300 camera. While
the limiting focal ratio is f/2.2 if D36 mm filters are used (which is well within margins
of almost any optics available), the limiting non-vignetting focal
ratio is only f/4.7 if D31 mm filters are used.
Filter wheels with 7 and 8 positions for EFW-SX
Warning: Camera system driver version 2.1 or higher must be used to
control filter wheel with 8 positions. If the system driver is
installed from USB Flash Drive supplied with the camera of from newly
downloaded installation package, compatibility with a new filter wheel
is ensured. But if the camera with EFW-XS8 is connected to a computer,
where some older driver with lower version is already installed, the
camera would work well, but the filter wheel will not be
recognized. If the camera is controlled drought the Gx Camera
Ethernet Adapter, it is necessary to make sure the adapter firmware is
of version 27 or higher.
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