Question about Bushnell NorthStar 78-8831 (525 x 76mm) Telescope

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View upside down

We assembled everything correctly, but when you look through the view is upside down. how do we fix that? thanks

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  • johnvah45 Nov 02, 2008

    same exact problem as images are upside down

  • ivias Feb 01, 2009

    I view everything upside down???????????

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  • Master
  • 3,185 Answers

There is nothing wrong. All astronomical telescope show object as upside down. There is no up or down in space!

Posted on Jan 11, 2009

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1 Answer

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.

Jan 02, 2015 | Optics

1 Answer

Everything is upside down


This is normal for an astro telescope. It is not considered important when viewing stars and so forth.
You can buy a terrestrial viewing prism to correct this
http://www.optcorp.com/product.aspx?pid=150-12607

May 05, 2012 | Meade Optics

1 Answer

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

Everything is upside down! why? how do i fix it?


Astronomical telescopes show upside down images. No up or down in space. To invert the image would require more glass and or mirrors.

You can purchase an erecting prism to use in viewing terrestrial targets.
http://science.howstuffworks.com/telescope23.htm

Read my Frequently Asked Questions TIP on my profile page.


Mar 30, 2010 | Tasco Specialty 301051N (100 x 50mm)...

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)...

2 Answers

Just came into a used tasco 302048 . Everything is upside down!!!


the scope is made for both terrestrial viewing and astronomical. In order to see terrestrially upright, you need an inverting STAR DIAGONAL. The eyepiece will do nothing for inverting the image. you might have 2 diagonals in the kit that came wih the scope. the diagonal is the part that fits into the scope. then you place the eyepiece in the diagonal. if you have 2 diagonals , one is a 90 degree angle,(astronomical) and one is a 45 degree angle, (terrestrial). the eyepieces change the magnification of the image. the bigger the number (9mm, 20mm, 26mm,) the smaller the image. the smaller the number , the bigger the image gets. the number is inverse of the image. Hope this helps.

Jul 01, 2009 | Tasco Luminova 40060660 (660 x 60mm)...

1 Answer

Everything is upside down its an inexpensive national geogra childs telescope when you look thru it everything is upside down


Yes all astronomical telescopes are upside down! No up or down in space!

You can buy an erecting diagonal for about $45 from Orion Telescopes to use for terrestrial viewing.

May 12, 2009 | National Geographic NG70CA (225 x 70mm)...

1 Answer

Finderscope image upside down & not focused if viewing past 100 yards


The upside down image is normal for astronomical telescopes. The finder usually is a fixed focus, but it can be altered for various eye types, by rotating the objective lens for focus - the cell should move in or out on fine threads.

Jul 06, 2008 | Tasco Galaxsee 45-114375 375X (375 x...

2 Answers

Vivitar Telescope 50x100


The telescope is designed for astronomical viewing. A 'terrestrial viewing' adapter would be needed to correct. Alternatively, use a diagonal adapter, and look in the downward direction. That will give a partial correction (the image inversion is why binoculars have prisms to correct the view)

Jun 02, 2008 | Vivitar (1607225) Telescope

2 Answers

Manual


You don't need a manual.
Upside down view through the telescope is normal. The scope is primarily for astronomical use and the concept of "up and down" is null in space.
If you want to use it for terrestrial viewing, you'll need an erecting eyepiece witch will correct up and down and left and right.

Apr 14, 2008 | Optics

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