Vixen Celestron Option Parts Erect Prism 36095 CELESTRON 45° 31.7mm 94112-A

[Observation with an erect image] The image of an astronomical telescope is normally an inverted image, but an erect image can be obtained by using the 45° erecting prism 31.7. When used in conjunction with a standard zenith mirror or zenith prism, the image becomes an erect mirror image and the left and right sides appear reversed. On the other hand, since this product provides an erect image, it can be used without discomfort for observing ground scenery, making it very easy to use even for beginners.