Michael A. Phillips' Astro Blog
Showing posts with label
focus
.
Show all posts
Showing posts with label
focus
.
Show all posts
Thursday, July 9, 2009
Michael A. Phillips' Astronomy Lesson on Seeing, Collimation and Focusing
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Why this subject? There's not a lot of comprehensive basics to understanding the importance of these fundamental variables to Astronomy...
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Monday, May 4, 2009
Older focus and collimation test
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Red filter on Castor in Gemini Good illustration of focus and collimation on the airy disk of a star. Set gain to full, leave gamma off / d...
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