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When you look through the spotter scope on my 76AZ Everything is upside down. Can this be changed?

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SOURCE: everything in telescope is backwards

These are normal for an astronomical telescope. You can get erector prisms to fix it for terrestrial use - but astronomers just live with it.

Posted on Aug 15, 2009

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Having been given a Celestron LT 76AZ for Christmas, the viewer seems to be in the wrong place, ie horizontal, and the image seen is upside down - can I rectify this?


This telescope works by a mirror. The image is upside down, sorry.
However you might want to get a Telescope USB camera, then you can see the image on your PC the right way up.

Dec 29, 2014 | Celestron AstroMaster LT 76AZ Newtonian...

1 Answer

Images are upside down with the eyepiece installed


Astronomical telescopes are made this way. (There are RACI-right angle correct image) finders on the market. It just takes some getting used to.

Dec 29, 2012 | Celestron SkyExpedition 76AZ Newtonian...

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The image is upside down


Yes, all astronomical telescopes show upside down images--- no up or down in outer space-- and you would need more lenses in the light path to erect the image.

Read my frequently asked questions tip on my profile page. Your question is asked just about every day by beginner amateur astronomers.

May 20, 2011 | National Geographic NG-76AZ Telescope

1 Answer

How to install the eyepiece


Is your scope like the picture? If it is it is a REFLECTOR style with a mirror on the bottom.

Put the eyepiece into the focuser-- this is the UP end of the telescope. The large mirror is on the DOWN end. I have seen many beginners mount these upside down with the open end pointing at the ground!

Read this:

http://www.texasastro.org/telescope.php

and my TIPS on my profile page.

Sep 08, 2010 | National Geographic 76AZ (525 x 76mm)...

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Can you tell me where i can buy an image erector, thanks


Yes, but it will probably cost almost as much as you paid for the scope:

here is one:
http://www.amazon.com/Celestron-Erect-Refractor-Schmidt-Cassegrain/dp/B0000665V4/ref=sr_1_2?ie=UTF8&s=electronics&qid=1283197941&sr=8-2

All astronomical telescopes show upside down images, it's normal. The erecting diagonal is only used for terrestrial day time viewing, of land objects.

Aug 30, 2010 | National Geographic 76AZ (525 x 76mm)...

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Everything is upside down on side eye piece. When viewing through the scope that's on the side of the telescope itself, everything is upside down. No matter which way it is turned, the same problem exists.


All astronomical telescopes show upside down images. It's completely normal. Nothing is wrong with the scope. For terrestril viewing you can buy an "erecting prism diagonal" which will turn the images right side up.

Like this:
http://www.skiesunlimited.net/index.php?CategoryID=98


Jul 21, 2010 | Edu-Science (10166) Telescope

1 Answer

When viewing everything is upside down.


Yes, all astronomical telescopes show images upside down. There is no up or down in space.

Sep 01, 2009 | National Geographic 76AZ (525 x 76mm)...

1 Answer

Image upside down


Hi, this is a common "problem" for astronomical telescopes. Same with my Meade 3" refractor and spotter. It is actually a design 'feature' not broken.

The issue is that most astronomical telescopes naturally show images upside down, or some combination of upside down and left-right.
(Astronomers usually don't care, because space has no up or down.)
It is just the way optics work when lenses or mirrors bounce and bend light. (And since the professional astronomer wants the most light and most direct image, they usually don't want extra devices just to make it right-side up.)

Reason that binoculars don't do that , is they employ special internal prisms to get the image back right-side up.

Easiest solution for astronomical telescope is to buy what is called a "star-diagonal" or "image-erector prism". These will usually make the image look normal for us earth-based folks.

I do not know what exact type your Meade 227 telescope is, but the spotter scope is most likely a simple refractor. So it MAY be possible to install a star diagonal onto it. Or might not. Depends on the exact spotter scope design.
Another option may be able to buy a replacement spotter scope that is designed for correcting image orientation.

Aug 10, 2009 | Meade DS-2114 ATS (325 x 114mm) Telescope

1 Answer

Everything in telescope is backwards


These are normal for an astronomical telescope. You can get erector prisms to fix it for terrestrial use - but astronomers just live with it.

May 30, 2009 | Telestar Meade Telescope

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