Re: ATM 14.5...internet scope mirror (KEN)

[Ken <lowther@worldnet.att.net>]

Ken wrote:
> 
> jw wrote:
> >
> > Hello, Ken: I'm just putting the final touches on polishing, and finishing
> > up my Foucault test stand, light, etc.  Am I wrong to do a knife-edge test
> > before parabolizing?
> 
> No.  You have to see where you stand.
> 
>  I believe I was refering to the numbers you get when
> > taking zonal readings from a Couder mask and possibly their conversions to a
> > graph showing the wavefront variations from optimum, etc.  You DO have to
> > get the numbers before you can input them, correct?
> 
> The goal before parabolizing is a sphere.  If you have a sphere, then
> there are no numbers to input.  Everything is zero.  That is why I was
> wondering about your statement about getting someone to check it because
> of the math involved.
> 
> > Then the programs
> > available will show where the mirror needs work?  Yes, I believe I have a
> > nice sphere  (it sure FEELS right (big <G>)  Seriously, though, I do have
> > the programs I need except TEX.  Would you be so kind as to point out my
> > errors in reasoning, and also do me a kindness of pointing me to where I can
> > get TEX?  Thanks for your time in advance.  JW
> 
> Since I have just spent a lot of time doing this page I'll recommend it:
> http://www.atmsite.org/software/softindex.html
> 
> --
> Ken Lowther
> Youngstown, Ohio
> http://www.atmsite.org
> ATM FAQ and more
> Good starting place for amateur telescope makers

-- 
Ken Lowther
Youngstown, Ohio
http://www.atmsite.org
ATM FAQ and more
Good starting place for amateur telescope makers