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Sample Chapter
Chapter 2 - Practical Focusing
You may have heard that focusing is difficult, or time consuming, or just plain annoying. It doesnt have to be. You do need to be extremely careful when focusing to get the best possible results. Accurate focusing is one of the most important ingredients in a good CCD image -- and it's totally under the control of the operator.
The key to good focusing is knowing what to look for. The difference between almost focused and critically focused is a very, very small movement of the focuser. In this chapter, you will learn everything you need to know to focus effectively. You'll learn:
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Why focusing is so critically important
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How to achieve best focus every time
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Tips for visually adjusting focus
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Software aids for achieving best focus
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Hardware aids for achieving best focus
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Alternative focusing mechanisms
The following sections of chapter 2 are available in Acrobat format:
- 0.8 Mb) (revised 11/14/2001)
- 0.5 Mb) (revised 11/14/2001)
- 0.5 Mb) (revised 11/14/2001)
- 0.7 Mb) (revised 11/14/2001)
Don't have Adobe Acrobat?
Copyright © 2000,2001 by Ron Wodaski. All rights reserved. Material may not be used without permission. If you provide a link to these pages, please send me an email message at about the link, and I will add a reciprocal link to my site.