In as new condition 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. A great item for a home with a view or nature watching. 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.
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