If you want to be able to use your new telescope for watching sailboats in the bay, or search the woods for various birds for your bird watching hobby, you will need a "star diagonal" to form an upright image.

The star diagonal is a bit tricky to make, as you have to make a precision cut, and usually have to file the surface to get a flat surface. If you would like to try for one of these, however, the directions for construction are here!

STAR DIAGONAL

You will need:

*1 - 2"