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Collimating Schmidt-Cassegrain Telescopes

Collimation of Schmidt-Cassegrain telescopes (SCTs) is vital in order to produce the great optical performance possible with this design.  Many new owners of SCTs believe their optics are sub-par when all that is needed is a night of good seeing conditions and an accurate collimation. 

I cover collimation in chapter 11 of The NexStar User's Guide II: 

Rod Mollise offers a guide to collimation on his website - visit the following page and look towards the bottom for the "Faqs 'n Files" section:

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Michael Swanson
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