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Re: Vivitar Telescope 50x100
The telescope is designed for astronomical viewing. A 'terrestrial viewing' adapter would be needed to correct. Alternatively, use a diagonal adapter, and look in the downward direction. That will give a partial correction (the image inversion is why binoculars have prisms to correct the view)
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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)
Get Stellarium or another fine astronomy program
During the day, point the telescope at a part of the landscape about 100 yards away.
Use the lowest power eyepiece (highest number) in the focal tube.
Center the landscape object in the telescope.
Align the finder scope so that it points exactly where the main telescope is.
At night, leave the scope out to reach thermal equilibrium (about an hour for small reflectors and refractors)
If the scope is on a EQ mount, polar align.
Point the finder at the moon. The moon should be in the main scope also.
Practice finding the moon before you start on the planets
Once you are comfortable with the moon and planets, you can go for the deep sky objects
All astronomical telescopes show upside down and or inverted images-- it's completely normal. To use this for terrestrial viewing (klijke a spotting scope) you will need to buy the correct size erecting prism diagonal similar to this one:
Astronomical telescopes produce an upside-down and reversed image (image is rotated 180 degrees from an upright position) since this doesn't matter when you are looking at things in the night sky. Accessories are available for rotating the image to an upright position, but most of those accessories do not work well with Newtonian style reflector telescopes such as the 114EQ reflector.