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Re: images viewed are upside down
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...email@example.com
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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
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.
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.
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
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.