Question about Celestron AstroMaster LT 76AZ Telescope 31036

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Image showing upside down - Celestron AstroMaster LT 76AZ Telescope 31036

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It is normal for astro telescopes to show an inverted image. It may seem odd but this is the case. It does not matter when viewing stars, but occasionally it is a problem eg for lunar viewing.

Therefore, and for land "terrestrial" viewing, you can fit in an "erecting" or "correct-image" prism

http://www.optcorp.com/open-box-orion-45-correct-image-prism-diagonal-1-25inch-07216-7037.html

There are many brands, some more expensive, for photography

http://www.optcorp.com/ba-amici-2-2inch-90-erecting-prism-star-diagonal.html

Posted on Nov 29, 2013

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Image seen is upside down. How do I invert?


All astronomical telescopes show the image upside down. For terrestrial use buy an erect image prism eyepiece. Not recommended for astronomy since a prism will reduce contrast.

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