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11.Aligning the primary mirror: When looking into the drawtube without attaching an
eyepiece, you can see like the diagram blow if the optical axis is correct. If you cannot
see like the diagram, align the primary mirror with the collimation "push and pull"
screws on the primary mirror cell.
12.Finally a star test. Take the telescope outside and let the optics fully cool to the
ambient temperature.
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