defining the first position is preceded by another hole. Filter numbering is
illustrated by the following picture:
Changing the Whole Filter Wheel
The whole filter wheel can be changed at once. It is necessary to remove the
front part of the camera case the same way as in the case of changing filters.
The filter wheel can be removed when you unscrew the bolt on the center of the
front part of camera case. Take care not to damage the horseshoe-shaped
optical bar when replacing the filter wheel.
Changing the Telescope Adapter
The camera head contains bolt square. The telescope adapter is attached by four
bolts. If you want to change the adapter, simply unscrew these bolts and replace
56
Illustration 24: Filter positions in the G3 filter wheel
