Re: [APML] Novak cells, clip diffraction patterns (was Alnitak)

[Torsten Clay <tclay@theriver.com>]

I have mirror clips on my 8" F/5 similar to Bobby's description. The
mirror is actually glued in, but I leave the clips on for safety. I don't
see effects like those from the Vixen either.

Are the mirror clips in the Vixen painted flat black? Maybe something else
in the tube (part of the spider?) or a reflection in the coma corrector is
causing it.

Torsten Clay

> Michael, the cell is a Novak and the mirror is held in there pretty much
> like my mirror on my other newt. It has 3 "clips" which hang over the mirror
> face maybe 1/8 inch. The mirror floats on a 9-point cell. I don't get those
> clip diffraction patterns on either of my newts and they both have Novak
> cells. Is that 2 sample poll enough to establish a pattern? Any other Novak
> cell users out there have a word?
> The mirror will "guess" out at about 10 lbs, but that's just a guess.


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