Rick, Paul,
Apologies, I see that I am coming into this about a year after the fact, but I just picked up a used AT12RC along with a new Tak Collimating scope and wanted to confirm that that Borg part works for you, and further, to see if one year later you are one year wiser and would therefore have additional collimating tips to pass along to an aging yank. BTW, I'm looking for it, but I don't see any small black dot on the secondary of my AT. What am I missing there? Thanks. Steve
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