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The image is upside down - National Geographic NG-76AZ Telescope

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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.

Posted on May 24, 2011

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Why when I look through my telescope it's upside down


The image in astronomical telescopes are naturally upside down. This can be corrected using an inverting eyepiece . The reason this is the case, is that normally when viewing astronomical objects it doesn't matter if the image is upside down, so to minimise the loss of light that is the more important issue, unnecessary optical surfaces are eliminated. Terrestrial telescopes do naturally have inverting eyepieces as people expect to see objects the right way up.
Getting and inverting eyepiece will be cheaper the changing telescopes! :) Your eyes see everything upside down too, but your brain turns the image the right way up. The image in cameras is also upside down at the image plane, but the electronics turn it the right way up for you.

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Why would the images be upside down


All astronomical telescopes show the image upside down. For terrestrial use, you need a erect image prism.

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MY EPSOM PROJECTOR IMAGE IS UPSIDE DOWN. WHAT DO I DO?


Hi, Your projector is probably set for ceiling mount which will project an upside down image because the projector is normally mounted upside down when installed on the ceiling. Go into the menu and select extended then select projection then select front. That should return the image to right side up.

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My projectors image is upside down. how do i fix


Go to Menu> Extended> Projection> select Front ( to project from the front of the screen ).Front/Ceiling ( If the projector is mounted upside-down from the ceiling ). Rear ( to project from behind onto a transparent screen ).Rear/Ceiling ( to project from behind when the projector is mounted upside-down from the ceiling ).

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How do I get the image to turn the right side up? When we first set it up the image was right side up for a few minutes and now it is upside down and we can't figure out how to get it to flip. The image is...


Dopn't worry about upside down. All astronomical telescopes show images upside down. There is no up or down in space.

You may have what is called an "erecting" prism diagonal that turns the image right side up. Just Google "erecting prism diagonal".

This may also help you.
http://www.cloudynights.com/item.php?item_id=810

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Upside down images on my telescope. Bought used -no manuel. What to do?


In a refractor images are upside down as with most telescopes. You need an image erector to create a normal correct R and L and Up and Down image. It is a lens which goes in front of the eyepiece to give a correct image.

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1 Answer

How do I correct an upside-down image?


Normal 0 Try this, while the computer is running, unplug the camera from the USB Port , wait a few seconds and then plug it back in. I have fixed several cmaeras that were upside down that had the same problem by doing this.
Worth a try.
Hope this helps. Bud

Mar 24, 2009 | Computers & Internet

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