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» Support Center » Knowledgebase » Where are the collimation screws for my Advanced GT Newtonian scope?
 Where are the collimation screws for my Advanced GT Newtonian scope?
Answer

Underneath the rear dust cover plate you will find six screws, three pairs each of Allen- and Philips-head screws.

Each type of screw works in opposition to the other type of screw. The Allen screws push the mirror, while the countersunk Philips screws pull the mirror. In this way, the tilt of the primary can be adjusted to collimate your scope.



Article Details
Article ID: 2407
Created On: Aug 26 2010 04:17 PM

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