Bushnell NorthStar 78-8890 (300 x 90mm) Telescope Logo

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Posted on Sep 24, 2007

Bushnel North Star

How come when I look through my telescope all the objects are upside down.Is this nornmal or have I got someting wrong.

  • roy10 Dec 27, 2007

    I can not get my eye piece to see anything

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1 Answer

A

Anonymous

Hello !
I had the same trouble. It's normal, you just have to put a lens to straight the image (it's use for terrestrial view).
XXX
Pierre

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Why is the view upside down on my telescope?

There is nothing wrong. All astronomical telescope show objects as upside down. There is no up or down in space!
Nov 06, 2019 • The Optics
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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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Hello, I m using the 60700 Telescope but the image i see in lens is very blurred, i assembled my telescope as per Manuel instruction but still i see upside down image with blurred effects. I tried several...

All astronomical telescopes show upside down and or inverted images-- it's normal nothing is wrong. You are applying too much magnification. Do not use the 2x barlow-- and start practicing how to focus using only the eyepiece with the largest number written on it which is your LOWEST power.

You can practice focusing during the daytime on a distant object like a telephone pole or a building.

www.telescopeman.org
www.telescopeman.info
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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.
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I have just bought an Astrolon telescope 288 power. I've assembled it following the instructions and I can't see anything. Inside the house I can pick few images but they appear upside down rather than...

All astronomical telescopes show upside down images --- it's normal.

Stars are always points of light no matter what telescope you own. Download this star chart:
www.skymaps.com

Objects in the sky are tiny, smaller than the tip of your finger held at arm's length, try for the moon FIRST which is large. Then try Jupiter which is that very bright "star" to the Southeast after dark.

Read my tips on my profile page.
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View upside down

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

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Bushnell 565

There are a few basic things to be aware of.
  1. This is an astronomical telescope so there is no erecting lens combination. So, everything you look at will be upside down.
  2. As a refracting telescope you have virtually no maintenance. A good thing.
  3. This telescope has an equatorial mount. Basically the mount corrects for the off-axis spin of the earth. The quick and dirty way to align the scope is to set position on the mount to 0hrs and 90 degrees. Make sure you are setup on a level surface and then rotate the entire telescope and tripod so that it faces north. Depending on your Latitude and longitude Polaris or the north start will appear higher or lower in the sky. Polaris is called the north star because it is within 1degree of the true north and it is always in the same spot throughout the night and year. The mount will have a third adjustment point near the base to adjust for the apparent change in position caused by the curvature of the earth. Once it is lined up try pointing the telescope at a bright star. The smaller the mm number on the eyepiece the higher the magnification. The beauty of an equatorial mount is that once you have it properly aligned on an object you only have to adjust on axis to keep the object in view.
I could write pages on this please re-post with some more specific questions and I will try my best to answer them for you. Good luck and happy star hopping.
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Bushnel North Star

No you do not have anything wrong. When ever light is passed through a lens it is inverted. Binoculars, and land viewing telescopes use a special lens combination or "erecting" prism to flip the image for you. The problem with that is it reduces the amount of light that passes through the telescope. It's not an issue for land viewing because these things tend to be close and bright. For astronomy objects are so faint that you actually get a better view when things are upside down.
Sep 24, 2007 • Optics
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