Quote:
Originally Posted by Riv39
I must say though that the very small amount of play around the collimator where it fits into the 2" to 1.25" adaptor (and probably the the adaptor to focuser as well) does not make this a precise science.
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There is always a little assumption to get started but you can iterate down to an extremely precise collimation only compromised by the mechanical limitations of your rig. Have a chat with JasonD on these forums. He'll be able to answer anything you'll throw at him in a more concise explanation.