Question about Meade 8" LX90 LNT Schmidt Cassegrain Telescope with SmartFinder w/ FREE UPS

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When I look at something through my bushnell 345 telescope, the image is upside down.

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That is the standard way astonomical telescopes work. If you use a right-angle prism, stand behind the scope and look down, it will reverse to right side up.

Posted on Jul 16, 2008

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Upside down image


Astronomical telescopes show a upside down image. For terrestrial use, you can buy a erect image eyepiece. They are not made for astronomical use since they reduce the light and contrast.

Oct 14, 2012 | Bushnell NorthStar 78-8831 (525 x 76mm)...

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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 just acquire a BUSHNELL 345 and I don't know how to use it. when I focus it on something I see its upside down!


All astronomical telescopes show upside down images. It's normal. If you want to use it for terrestrial viewing you can purchase an "erecting diagonal" like this:

http://www.astronomics.com/main/Image_Erecting_Prisms.asp/catalog_name/Astronomics/category_name/EDNECFUVSRWS8KLNTU5E38XSE1/Page/1

Oct 29, 2010 | Bushnell Tasco Telescope Galaxsee 525x60mm...

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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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When looking through my bushnell telescope the images are upsidedown whats this all about how do i right this situation


All astronomical telescopes show images upside down. You can buy an "erecting prism diagonal" for terrestrial viewing.

Remember --- no up or down in space, and you would need to add more glass to "erect" the image.... more glass usually means reduced light throughput, at the eyepiece.

Dec 30, 2009 | Bushnell Optics

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

Upside down image


All astronomical telescopes have upside down images. NO up or down in space. You can purchase an "erecting" diagonal, but it will cost almost as much as your telescope.

Google "erecting prism telescope".

Oct 15, 2009 | Bushnell Voyager 78-9970 Telescope

2 Answers

Inverted image


All images in astronomical telescopes are upside down and reversed-- this is normal. There is no up or down in space. Reversing the image just adds more GLASS to the light path.

Nov 13, 2008 | Bushnell NorthStar 78-8846 (675 x 114mm)...

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Bushnell 345


This is normal behavior for an astronomical telescope. There is no right-side-up in the sky, and turning the image around adds cost and reduces optical clarity. You can buy correct image finders and image-erecting diagonals, if you choose to do so, but in general to reduce the cost to the consumer they are manufactured without them.

Jul 08, 2008 | Bushnell SkyTour 78-9960 (700 x 60mm)...

2 Answers

Upside down sight


You need a 'spotting scope' adapter to right the image using a prism.

Jun 21, 2008 | Bushnell NorthStar Goto 100mm 788840...

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