I have a meade ext 125 and am unable to focus on anything. When looking through the eye piece, nothing appears.
Here is the manual-- read it cover to cover--
http://www.meade.com/manuals/TelescopeManuals/ETXtelescopes/ETX-90%20w-autostar%20man.pdf
1. Take off the lens cap
2. Put your lowest magnification eyepiece into the telescope on the TOP eyepiece port-- there is a lever on the side which rotates the diagonal mirror between the top and rear ports --- can you see light through the telescope? If not turn the lever.
3. During the day practice focusing on a distant object at least 100 yards away-- the image will be upside down -- this is not a problem-- no UP or Down in space.!
4. The lowest magnification eyepiece is the one with the LARGEST number on it.
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