Question about Fieldvision 114mm Reflector (114 x 114mm) Telescope

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My telescope images are upside down, how do i correct this?

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ALL astronomical telescopes show upside down images, it's normal. Nothing is wrong with your telescope.

For terrestrial viewing you can buy an "erecting prism" which will turn the image right side up.

Like this one:

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


Read my Frequently Asked Questions TIP on my profile page.

Posted on Aug 03, 2010

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It is the first time that I have a telescope just want to now the finder scope why is it that if you look through it its upside down. Did I do something wrong or must it be like that?


It is normal with astro telescopes to show an image upside-down (and sometimes reversed as well). This is because stars (but not planets) look the same both ways. The finderscope is usually the same.

You can get correct-image finderscopes though

http://www.optcorp.com/ae-fre80bk-80mm-right-angle-image-correct-finderscope-black.html

and for the telescope itself you would fit an erect-image diagonal prism, either 45 deg or 90 deg.

http://www.optcorp.com/os-d125ei45-45-erect-image-diagonal-1-25inch.html

.

Dec 30, 2015 | Optics

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

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Cant get an image.Is it right that the view finderimage is upside down


The image of all astronomical telescopes are upside down (SCTs are upside down and reversed). RACI (right angled, correct image) finders do produce a right-side up image. For daytime use a erect image prism eyepiece.
Follow below instructions (except 7 in your case)

  1. Get Stellarium or another fine astronomy program
  2. During the day, point the telescope at a part of the landscape about 100 yards away.
  3. Use the lowest power eyepiece (highest number) in the focal tube.
  4. Center the landscape object in the telescope.
  5. Align the finder scope so that it points exactly where the main telescope is.
  6. At night, leave the scope out to reach thermal equilibrium (about an hour for small reflectors and refractors)
  7. If the scope is on a EQ mount, polar align.
  8. Point the finder at the moon. The moon should be in the main scope also.
  9. Practice finding the moon before you start on the planets
  10. Once you are comfortable with the moon and planets, you can go for the deep sky objects

Feb 28, 2013 | Vivitar Viv-tel-76700 75x/350x Reflector...

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...

1 Answer

I have newtowian 76mm everything is upside down when i look . Is this correct??


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

Read my TIPS on my profile page.

Jan 23, 2011 | Vivitar (1607225) Telescope

1 Answer

WHEN I LOOK THROUGH MY TELESCOPE EVERYTHING IS UPSIDE DOWN


Yes that is correct. All astronomical telescopes show upside down images--

Read my TIPS on my profile page. Your question is a frequently asked.

Jan 19, 2011 | Bushnell Optics

1 Answer

Image is upside down - why?


Yes that's correct. All astronomical telescopes show upside down images. Nothing is wrong with the scope.

You can buy an "erecting diagonal" for terrestrial viewing.

Here is one:

http://www.opticsplanet.net/meade-928-45-erect-image-diagonal-prism.html

Aug 01, 2010 | Tasco Astronomical 302675 Telescope

1 Answer

Every thing is upside down how do I correct this??


All astronomical telescopes have upside down images. It's normal, nothing is wrong with the scope.

You can buy an "erecting prism" to invert the image right side up. Here is one:
http://www.astronomics.com/main/product.asp/catalog_name/Astronomics/category_name/EDNECFUVSRWS8KLNTU5E38XSE1/product_id/6329

These can also be found on amazon.com

Jul 10, 2010 | Bushnell NorthStar 78-8831 (525 x 76mm)...

2 Answers

Image is upside down


A telescope sees that way. you have to have a corrective lens to right the view. Its a physics thing about how light goes thru a lens and at the lens flips over upside down, you need another neutral lens to flip it right side up again. If you got the entire kit try another lens till you find the corrective lens.

Jul 05, 2009 | Meade ETX-90EC (325 x 90mm) Telescope

1 Answer

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.

Jun 01, 2009 | Fieldvision 114mm Reflector (114 x 114mm)...

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