Meade Model 933 Image Erecting Prism for ETX-60,
ETX-70 and ETX-80 Models. Produces a correctly oriented image and
convenient 45° observing angle for terrestrial observations.
All ETX-60, ETX-70 and ETX-80 models all feature an internal flip
mirror to reflect light to the telescope’s convnient 90° astronomical
observing position. In this position the telescope’s image is upright,
but mirror reversed left to right. While this is normal and poses no
problem for astronomy, for terrestrial observing a corrected image is
highly desirable which is where this useful accessory comes in.
For observing wildlife, a home with a view, or other Earthly
applications the #933 45° Erecting Prism results in an image both right
side up and corrected left to right. It also provides a comfortable 45°
observing angle which is more convenient for daytime work. Threads
securely onto the rear photo port of the telescope. For all ETX-60.
ETX-70 and ETX-80 models.
