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Peter,
My opinion....
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the second picture, with the secondary mirror in the holder, shows the secondary mirror is centered in the secondary baffle and the small hole in the middle of the secondary mirror, which I’m assuming is the Primary baffle, is centered on the secondary mirror. If I’m correct, all is good so far.
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Go with this second set-up and move forward.
Only question I have is how to "lock" the secondary holder in this position...
Using an artificial star will, I think confirm the collimation.
ken
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