I have a Bushnell Voyager 789946. I have taken both caps off and set the findascope to an object 200m away. I have then used the eye piece with the highest number on it (H12.5mm) I can't see anyth

I can't do much without knowing more details about what you are experiencing, but below is Bushnell's online Instruction Manual for the Voyager 789946 which I assume would be very closely related to your model.
http://www.bushnell.com/getmedia/42f4f060-ea31-4b94-a77e-0bbddde87f95/voyager-skytour-2011.pdf?ext=.pdf

Hope that helps!

Try contacting Bushnell directly.

800-423-3537 Toll Free

Astronomical telescopes present images upsidedown, this is normal.

Sky objects are VERY small the scope must be pointed directly at them--- try for the moon first --- to learn how to focus properly. Just pointing it toward the sky will not do you any good.

Put the lowest power eyepiece into the telescope-- that's the one with the LARGEST number on it--

Take the scope outside and point it at a distant object over 100 yards away. Then practice focusing the telescope-- turn the knob slowly.

Put the lowest power eyepiece in the telescope-- that's the one with the LARGEST number on it.

Go outside and practice focusing on a distant object at least 100 yards away-- turn the focus knob slowly.

There are several different types of eyepiece holders:

Set-Screw-- this is a small screw on the side of the diagonal that holds in the eyepiece.

Compression ring-- again a small set screw but a brass compression ring tightens onto the eyepiece.

Plain Compression Diagonal-- the diagonal is a tight fit to the eyepiece- try binding it slightly in to get a tighter fit.

Please you any hobby shop. All telscope mostly similer.all eyepiese is adjust with any telescope.
Don't worry if you lost finderscope ot finderscope adjustment.This unit is support to find object only.You can find diectly.
Happy sking.

Not worth repairing-- a new focuser for your telescope would cost as much or more than the telescope-- unless you can find a discarded telescope of the same model..... for parts.

Hello,
What you have is called a refractor-type telescope with the primary lenses (the Objective) at the top of the tube and the only other lenses in the system are your selection of eyepieces, probably a barlow lens (2X magnification of any eyepiece used), and a diagonal (in line mirror so that you cand see into the telescope from the side.). As the focal lenth of the eyepiece decreases, so does the distance away from the Objective Lens. I believe that you are using the telescope with a diagonal mirror which makes the optical path longer. The fact that your longer focal lenght eyepiece can focus and not your short one would be only if you didn't have the diagonal or the eyepiece all the way in tight to allow the focus mechanism (rack and pinioin) to get compressed enough to focus. Look at the Moon, if the image gets smaller then bigger as you focus, but not sharp, then I would have to tell you that your eyepeice lenses are not in the right order. Someoner may have taken it apart and didn.t put them back in the correct order. The lenese could just be very dirty also. Barrow a short focal lenght eyepice from a friend and see if it works in your system. Then you will know for sure.