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

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Images viewed are upside down

I have a Bushnell 78-8831 76 mm reflector telescope.
It was assemble properly as per the manual, but the terrestial images viewed are inverted.

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Oh this is normal,because when looking at stars it really doesnt matter if they are inverted,but by leaving out the erecting lenses you get more light and less distortion. so you need an erecting lense to see images in the daytime,call bushnell@18004233537,im sure they can sell you the right adaptable piece....good luck...larry@reichinstruments.com

Posted on Nov 28, 2008

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My land scope is showing the pictures up side down does anyone know how to fix this issue this is a brand new bushnell scope


This is an astronomical telescope-- all astronomical telescopes show upside down and or reversed images. It's completely normal.

For terrestrial viewing you must buy an "erecting prism diagonal" similar to these:
http://www.astronomics.com/main/Image_Erecting_Prisms.asp/catalog_name/Astronomics/category_name/EDNECFUVSRWS8KLNTU5E38XSE1


www.telescopeman.org
www.telescopeman.us
www.telescopeman.info:

Jul 15, 2011 | Bushnell 675x5 EQ Reflector Telescope

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I bought a Bushnell 78-4501 reflector telescope and the images are upside down. How can I fix this?


Astronomical telescopes usually show an upside down image. There is a good reason for this- erecting the image needs more bits of glass in the light path, which reduces the amount of light and increases aberrations. Even if this is only slight, astronomers prefer to avoid it, and they don't really care which way up the Moon or Jupiter appear.

It is possible to fit an erecting prism or eyepiece to most astronomical telescopes, and some of them come with one. For a reflector, an erecting diagonal of the kind that is often used on a refractor is of no use. There are other types of erecting adaptors or eyepieces. However, unless you wish to use the telescope for terrestrial viewing, for which a reflector is badly suited anyway, you might as well fall in with the tradition that astronomical observations are made upside down.

Jan 13, 2011 | Telescopes

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First time telescope - after assembly, view through lens is upside down.


All astronomical telescopes show upside down images-- it's normal. NO up or down in space!

Read my tips on my profile page-- especially the Frequently Asked Questions TIP.

Dec 27, 2010 | Bushnell NorthStar 78-8831 (525 x 76mm)...

1 Answer

I put the 1.5 erecting lens in, however, I am getting a tilted veiw not an upside down one without it How do I get the veiw totally upright?


Turn the diagonal, and the image rotates. Using the scope for star gazing it does not matter. Normally an astronomical telescope shows an upside down image--- no up or down in space. The erecting prism is only used for terrestrial viewing as the prisms inside are probably NOT multi-coated.

Sep 28, 2010 | Bushnell 3" Reflector Telescope w/Talking...

1 Answer

Image is upside down (inverted)


All astronomical telescopes show upside down images this is normal.

You can buy an "erecting prism" to use for terrestrial viewing from many on-line retailers here is one: This will flip the image so it is not upside down.

http://www.amazon.com/Bushnell-780103-1-25%C3%93-Format-Erecting/dp/B000EY2ZFK

Jul 11, 2010 | Barska Optics Barska AE10104 - 70076, 350x...

1 Answer

Bushnell Discoverer 78-8945


All astronomical telescopes show upside down images. Read my Frequently Asked Questions Tip on my profile page. These scopes are made to view objects in the night sky which are very small, and faint. To erect the image would require more glass or mirrors in the optics and would further dim these objects.

You can buy an "erecting prism" to use for terrestrial viewing. Like this:
http://www.amazon.com/Bushnell-780103-1-25%C3%93-Format-Erecting/dp/B000EY2ZFK

Your scope is working just fine.

Jul 07, 2010 | Bushnell Discoverer 78-8945 (325 x 114mm)...

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I am having problems viewing


All astronomical telescopes show upside down images. There is no up or down in space. To ERECT the image would take additional GLASS lenses. MORE glass means less light pass-through for those dim sky objects.

Dec 25, 2009 | Bushnell 675x5 EQ Reflector Telescope

1 Answer

Should the image i see through my viewfinder be upside down?


Yes, all astronomical telescopes show upside down images. No up or down in space, and more GLASS is required to right the image. This dims those faint objects in the sky.

However you can buy an ERECTING prism diagonal to use for terrestial viewing during the day time. Here is one:

http://www.scopecity.com/detail.cfm?ProductID=1775


Dec 09, 2009 | Bushnell NorthStar 78-8890 (300 x 90mm)...

1 Answer

Why is my picture upside down during the daytime ? on box says reflector. am i wrong when i had read that these have view as you would with binoculars


All astronomical telescopes have upside down images. There is no up or down in space; and it requires more glass elements to turn the image upright. More glass means less light will reach your eye.


Nov 15, 2009 | Bushnell Voyager Series 675 x 4.5...

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