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How do I tell if a telescope I'm interested in buying has high-quality optics?

JACOB COLBORN, CALABASH, NORTH CAROLINA
This is the first question any prospective telescope buyer should ask. Here are four key points to help you evaluate a telescope's optics.First, get to know the marketplace, and select a scope from a well-known manufacturer. Become familiar with manufacturers and their wares by, for example, browsing ads in the pages of Astronomy. Aside from getting the best quality scope for your money, purchasing from an established company assures you of good return and repair policies. Once you've found some...

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