Meade 933 (07220)

45 degree Erecting Prisms: All ETX models include an internal flat mirror to reflect light to the telescopes 90 degree astronomical observing position; in this position the telescopes image is upright, but reversed. For terrestrial observing the 45 degre... Read More

45 degree Erecting Prisms: All ETX models include an internal flat mirror to reflect light to the telescopes 90 degree astronomical observing position; in this position the telescopes image is upright, but reversed. For terrestrial observing the 45 degree Erecting Prism results in a correctly oriented image and a convenient 45 degree observing angle. Short description