Upside down image - Bushnell NorthStar 78-8831 (525 x 76mm) Telescope

The image in astronomical telescopes are naturally upside down. This can be corrected using an inverting eyepiece . The reason this is the case, is that normally when viewing astronomical objects it doesn't matter if the image is upside down, so to minimise the loss of light that is the more important issue, unnecessary optical surfaces are eliminated. Terrestrial telescopes do naturally have inverting eyepieces as people expect to see objects the right way up.
Getting and inverting eyepiece will be cheaper the changing telescopes! :) Your eyes see everything upside down too, but your brain turns the image the right way up. The image in cameras is also upside down at the image plane, but the electronics turn it the right way up for you.

All astronomical telescopes show the image upside down. For terrestrial use, you need a erect image prism.

Hi, Your projector is probably set for ceiling mount which will project an upside down image because the projector is normally mounted upside down when installed on the ceiling. Go into the menu and select extended then select projection then select front. That should return the image to right side up.

Go to Menu> Extended> Projection> select Front ( to project from the front of the screen ).Front/Ceiling ( If the projector is mounted upside-down from the ceiling ). Rear ( to project from behind onto a transparent screen ).Rear/Ceiling ( to project from behind when the projector is mounted upside-down from the ceiling ).

Dopn't worry about upside down. All astronomical telescopes show images upside down. There is no up or down in space.

You may have what is called an "erecting" prism diagonal that turns the image right side up. Just Google "erecting prism diagonal".

This may also help you.
http://www.cloudynights.com/item.php?item_id=810

Upside down image.

In a refractor images are upside down as with most telescopes. You need an image erector to create a normal correct R and L and Up and Down image. It is a lens which goes in front of the eyepiece to give a correct image.

Normal 0 Try this, while the computer is running, unplug the camera from the USB Port , wait a few seconds and then plug it back in. I have fixed several cmaeras that were upside down that had the same problem by doing this.
Worth a try.
Hope this helps. Bud

mine is too ...help!!!!