Eyepieces

Telescopes: Guides & Recommendations

Optical Aberrations at the Telescope — And How to Avoid Them

Optical aberrations limit the performance of an eyepiece. Here are seven common problems, with solutions where applicable.

Magnifying Lens

Choosing Your Astronomy Equipment

Common Telescope Magnification Myths

Answers to some of the most common misconceptions about telescope magnification.

Choosing Your Astronomy Equipment

Telescope Eyepiece Guide

A telescope is only as good as its eyepiece — and a good one can make a big difference. Here's a quick look at the different types of eyepieces available.

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