Guide :Optics : ETX-90 (48x90 mm)

ETX-90 Focus My telescope was working properly before it was moved to Florida by a moving van. I can not now get the telescope to focus properly. I have tried adjusting the focus knob but no luck. I am also not sure if the eyepiece has been tampered with or not. Is there an illustration showing how the lenses should be placed in the eyepiece?

Posted by George Conquest on Nov 12, 2007

Research, Knowledge and Information :

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