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Hi Mike.
You're right, I actually did 14 versions but whose counting!
Alnitak wan't a problem at all. Perhaps the baffling in the scope handled that. I did have a few subs where the framing shifted a bit during focusing and I didn't pick it up and it showed Alnitak starting to cause a small reflection. I was surprised by the lack of light rays and I put it down to the excellent baffling as well as excellent anti reflection coatings and extremely black absorbing paint. No doubt the fluorite element has an impact on that as well with less scatter.
Yuri uses this extremely black super absorbing paint to paint the interior of the tube. He researched what was the blackest most absorbing paint around. It is blacker than both my Tak scopes and the AP.
He posted images of it compared to other black paints and it is really black.
Greg.
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