It is a Telescience Telescope 30/60. At first I couldn't adjust my eyes to it but then finally when I was able to look through I saw things upside down and backwards. when I took the lense off it was the same thing. When I looked through the diagonal mirror it was the same thing. I have a faint recollection that this happened when I was in school but I don't remember how to resolve and the directions and looking online doesn't say anything about it - any suggestions?!!!
2007-06-25 09:13:50 · 4 answers · asked by amygr073 1 in Science & Mathematics ➔ Astronomy & Space
Many telescopes invert images. Since they are designed to look at objects in space 'up' and 'down' become trivial. Adding prisms or mirrors to 'correct' the image reduce the amount of light that reaches your eye and so become undesirable. However if you need to do land surveys where 'up & down' become important reference points, there are diagonal prisms you can use with your telescope. they are elbow shaped. but again, if you are doing it for space observation you are only dimming your image for absolutely no gain. If you need just google "telescope erect prism" and you'll get tons of options to 'correct' the problen in your scope.
By the way, Barlow lenses reduce de focal lenght of the eyepiece thus incresing the magnification of the telescope, they do not flip images.
2007-06-25 09:20:34 · answer #1 · answered by ΛLΞX Q 5 · 4⤊ 0⤋
Astronomical telescopes traditionally are made to show things upside down. This is because an extra lens is needed to make the image right side up again, and it has traditionally been deemed unnecessary in a telescope that will be used only to look at the sky. Also, if you have a diagonal mirror, the image will be a mirror image, reversed right to left. So depending on the exact type of telescope design you have, the image could be right side up or upside down, and mirror imaged or not. Or any combination of those things. Of course, telescopes intended to be used to look at things on the ground, like binoculars, are designed to give a right side up, not mirror imaged view.
2007-06-25 17:32:54 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
The reason you see backwards and upside down is; telescopes
are meant for observing space objects, which there is no upside
view. To view land objects, you need a barlow lens. This converts the upside down view to right side up.
2007-06-25 16:23:48 · answer #3 · answered by nexteltom17 4 · 1⤊ 4⤋
look through the other end
2007-06-25 16:20:24 · answer #4 · answered by Anonymous · 0⤊ 6⤋