Question about Celestron NexStar 8i (600 x 203mm) Telescope
Check the focus knob and make sure the small "set-screw" is tight and the knob is just not spinning around on the shaft.
DID you turn the knob enough to focus? Sometimes it may take 10 - 20 full turns.
Finally the focuser is attached to a "rod" inside the tube that moves the mirror back and forth to focus the scope. It could have come loose from the rod?
Instructions for disassembly are here:
http://www.sciencecenter.net/hutech/misc/focuslk/index.htm this just shows how it works.
Posted on Oct 25, 2010
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Posted on Jan 02, 2017
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