[ATM] Schmit corrector for a 5" F1 sphere.

["Thomas Janstrom" <thomas@moiler.com>]

Hi All,

 

I need some pointers on designing the corrector for a 5" F1 sphere (better
than 1/10 wave, I don't know the frequency it was tested at though) , I'm
planning on a secondary mag of about 4 to give a system F/ of F4ish.

 

Some specs on the primary, its 5" OD with a 2.5" central perforation, the
blank is conical.

 

So what I'd like to know is a, how do I work out the surface profile for the
corrector for a mirror this fast, and should the corrector be sub or over
aperture?

 

Cheers and thanks, Thomas.

 

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