Meade #932 45-Degree Erect Image Prism (1.25")

All the mentioned ETX series telescopes include an internal optical-flat mirror to reflect light to the telescope's 90° astronomical observing position; in this position the telescope's image is upright but reversed.  For terrestrial observing, the Meade #932 prism renders images that are both upright and laterally correct.  The #932 prism is included as standard equipment with the spotting scope versions of the ETX telescopes.

This prism has a built-in magnification factor of 1.08x.