Fig. 8 Fig. 9
Fig.10 Fig.11
Fig. 12 Fig. 13
Collimation
The Comet Hunter telescope is optically aligned (collimated) at the factory prior to shipment, but may occasionally require re-
alignment, particularly if the telescope has received rough handling in shipment. Before using this model for the first time, check the
alignment of the optics as outlined in this section. Good optical alignment is essential for optimum telescope performance.
Confirm Alignment:
To confirm optical alignment look down the focuser drawtube (1, Fig. 10) with the eyepiece removed. The edge of the focuser
drawtube frames reflections of the primary mirror (2, Fig. 10), the secondary mirror (3, Fig. 10), the three (“spider”) vanes (4, Fig.
10) holding the secondary mirror, and the observer’s eye (5, Fig. 10). With the optics properly aligned, all of these reflections
appear concentric (centered), as shown in (Fig. 10). Any deviation from concentricity of any of these telescope parts with the eye
requires adjustments to the secondary mirror and/or the primary mirror cell, as described below.
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