Glenn Chaple's observing basics: Finding the right finder
May 2007: Learn about finder scopes market and how to align your finder scope.
May 1, 2007
|You'd be surprised by the finder scopes |
available to today's amateur astronomers. The typical model is an optical finder scope essentially, it's a miniature wide-field telescope. The numbers 6x30 signify its magnifying power (6x) and aperture (30mm) and are adequate size to use with a small refractor. For my 13-inch Dobsonian, I use a larger 8x50 finder.
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