Observing Basics: Eyepieces

In this episode, Senior Editor Michael E. Bakich answers one of the most common eyepiece questions he receives: What do those numbers mean?
By | Published: July 23, 2012 | Last updated on May 18, 2023

What do the numbers mean?

Focal Length of your Telescope (in mm) / Focal Length of your Eyepiece (in mm) = magnification