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8958 Collimating the Ritchey‑Chrétien, Image Orientation, Using the Collimating Eyepiece
Models:
8956
8958
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Specification
Parts list
Warranty
Secondary Adjustment
Star Testing
Focusing the Telescope
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i n s t r u c t i o n M a n u a l
#8956 6 f/9 Ritchey-Chrétien Optical Tube Assembly
#8958 8 f/8 Ritchey-Chrétien Optical Tube Assembly
Orion Ritchey-Chrétien Astrographs
Parts List
Setting Up Your Telescope
Unpacking Your Telescope
2a 2b 2c 2d
Figures 2a-d Unpacking the Optical Tube
Grip-ring Focuser body Figure 3 Removing the focuser
Page
Inserting a Star Diagonal
Focusing the Telescope
Attaching a Finder Scope
Inserting an Eyepiece
Secondary Adjustment
Collimating the Ritchey‑Chrétien
Using the Collimating Eyepiece
Image Orientation
Optical Axis Adjustment
Star Testing
9b 9c
6 f/9 Ritchey-Chrétien
Care and Cleaning of the Optics
SpecificationsSpecifications
8 f/8 Ritchey-Chrétien
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