German Equatorial Mounts (GEMs) – Overview and Working
This article explains how German Equatorial Mounts work. Most people are familiar with camera tripods that offer vertical movement and head rotation. Telescope mounts based on this principle are called Altitude-Azimuth mounts, or Alt-Az mounts for short. German Equatorial Mounts (GEMs) are more complex, but they are preferred by astrophotographers and observers who like to … Read more