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When viewing through my telescope finder and telescope tube appears upside down. How can I adjust this?

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Hi,

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


Good Luck!!

Thanks!!

Posted on Aug 02, 2010

  • giansanti417 Aug 03, 2010

    What "erecting prism diagonal" would you recommend for my edu science telescope (Astro-Nova 525x Power 102mm) and where are they sold?

  • taran_2005
    taran_2005 Aug 03, 2010

    Thanks for your response!!

    You could take a look at the below site :-

    http://www.astronomics.com/main/Image_Er...

    You could buy it from there.

    Good Luck!!

    Thanks!!


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1 Answer

When I look through the view finder--everything is upside down???


Astro telescopes normally do show an inverted image, since for most purposes this does not matter. For terrestrial viewing, such as thru someone's window, you can buy an "erect image" or "correct image" prism which gives an upright image.

http://www.optcorp.com/telescope-accessories/optical-tube-accessories/diagonal-prism-eyepiece-holder.html?a_diagonal_design_f=1090

I don't know of such a thing for the finder scope, you would have to buy a new finder.

http://www.optcorp.com/celestron-9x50-illum-ra-correct-image-finderscope-93781.html

Mar 06, 2014 | Celestron NexStar 114GT (269 x 114mm)...

1 Answer

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

We are trying to test out viewing land based objects using the 30X eyepiece, which according to the instructions, should appear right side up and not upside down! This is not happening.


It's NOT really a problem. ALL reflector style telescopes show upside down images. This will not affect your star gazing since there is no UP OR DOWN in outer space. Read my tips on my profile page.

You can buy an "erecting diagonal" for terrestrial viewing- BUT this is not what an astronomical telescope is actually used for.

So align the small finder scope on a distant object like the top of a telescope pole during the day time. Point the main tube at the pole and get the tip top in the main tube's eyepiece. Without moving the telescope adjust the crosshairs on the finder scope on the exact same spot. The moon should be your first target at night and you can check and refine the finder scope on the moon.

Mar 12, 2011 | Bushnell 3" Reflector Telescope 60% OFF w/...

1 Answer

Viewfinder views things backwards


Yes, most finder scopes show upside down images, it's completely normal.

This is an astronomical telescope. Even the main tube shows upside down images unless you use what is called an "erecting prism" for terrestrial viewing.

Jul 06, 2010 | Meade 70AZ-TR Telescope

1 Answer

Inverted images of view finder


Yes, nothing is wrong. Most finders show upside down images.

May 20, 2010 | Meade 70AZ-TR Telescope

1 Answer

View finder is upside down is this normal


Yes, all astronomical telescopes and some finder scopes show images upside down.

Dec 17, 2009 | Barska Optics Barska AE10094 - 70060, 525x...

1 Answer

When i look in the finderscope the objects r upside down but when i look in the big one theres nothing,even when i try and zoom in and out thers nothing moving


Some finders show things upside down. There is no up or down in outer space.

During the daytime focus on an object like the top of a telephone pole a good distance away.

Without moving the telescope adjust the finder scope so that the "crosshairs" in the finder are centered on the same object as the main tube. Most astronomical telescopes show upside down and reversed images.

Nov 04, 2009 | Meade (r) TeleStar Manual 60mm Refractor...

1 Answer

Things are upside down looking thru the eyepiece on main telescop


If things are upside down in your telescope, you probably have a reflector telescope.it has curved mirror in the sealed end.take off the cover near the finder and point in the general direction of what you want to see.Make adjustments with the stuff on the mount.If you are viewing terrestrial objects, you will need an inverting lens to correct the image.It is called a Barlow lens and is much longer than the other lenses that come with the telescope.Good Luck

Mar 25, 2009 | Edu-Science (10166) Telescope

1 Answer

View is upside down


Yes-- all astronomical telescope are upside down--

NO --- UP or DOWN in outer space! Reversing the image just introduces more "glass" into the optical train.


Mar 15, 2009 | Citiwell International Orbitor 5500...

1 Answer

How do you use the red dot finder? and when I look throught the format eyepiece everything is upside down.... Thank you Stacie


Astronomical telescopes show all objects upside down and reversed-- this is not a problem; there is no up or down in space.

The red dot finder helps you point the telescope-- focus on a distant object and center it in the eyepiece.

Without moving the telescope -- adjust the red dot onto the object. Now you can use the finder to locate objects.

Apr 13, 2008 | Bushnell Voyager 78-9945 Telescope

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