We were given an EDU Science telescope and tripod (no case). We don't know if it is working or if it has all the parts. The telescope looks like the link below, but the smaller tube attachment (see the large image front lower right) is missing. All we have is the tripod and the main large tube.
The text on the telescope says:
Coated Optics DIA-76mm F=800mm
When we look inside the telescope (large tube) we see a mirror at the bottom. Near the top inside are the three metal bars with the device in the middle with three screws.
I think we are missing the eye piece.
I can send pictures if that would help. Our goal is to get it to work without having to buy all new parts.
The bit you are missing is the finder scope, which is a small low-power scope that is used to line up the main scope on an object that you want to view. Without this it can be quite hard to get the scope pointed at anything, as the field of view is quite limited, and more so at higher powers. It can be quite expensive to buy useful eyepieces for a scope, but they are readily available if the eyepiece mount tube is 1.25 inch inside diameter. The eyepieces that originally came with this scope probably were not very good, and in fact this scope is not up to much. It is rather small for a reflector at three inches diameter. You certainly won't be able to use it at the advertised 600 power, or even at 200. It has neither the resolution nor the light gathering ability with that small an aperture.I would recommend that you explore the web page at THIS LINK for a lot of good advice about first telescopes, before you spend any money. Read More At : Edu-Science...