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Old 18-04-2014, 09:44 AM
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Paul Haese
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Paul Haese is offline
Join Date: Jan 2009
Location: Adelaide
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Originally Posted by Logieberra View Post
Also, this should come standard on the bigger (12"+) RCs, don't you think?

Tip Tilt Focuser Collimation Ring:
From the drawings I have seen to date this is incorporated into the new adapter system. It has become necessary for centring of the optical axis as pointed out by Mark above.
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