Re: [ATM] Aplanatic Gregorian (was: 25" mirror possibilities)

[Michael Peck <mpeck1@ix.netcom.com>]

At 22:08 24-11-04, lou krajci wrote:

> >Modern texts like Schroeder's "Astronomical Optics" or Wilson's "Reflecting
> >Telescope Optics" treat all two mirror designs as a single family. Neither
> >of those are aimed at ATMs, but in my opinion every serious ATM should own
> >at least one of them.
>
>At around $100 each?  (And isn't Wilson's book in two volumes?)  Ouch.
>That's a big price for many ATM's.
>

Tom:

Check out <http://www.abebooks.com>. They list several sources for used 
copies of the first edition of Schroeder for $US 30-60. For that matter I 
have 2 copies of the 1st edition that are doubly redundant since I also own 
a copy of the 2nd edition. List management doesn't want this list to become 
an online swap meet so I'll say no more.

Wilson's books are harder to find heavily discounted, which probably means 
people find them too valuable to dump on the used book marketplace. I know 
I do.

Mike Peck


_________________

Michael Peck
email mpeck1@ix.netcom.com
Wildlife photography page http://home.netcom.com/~mpeck1/index.html
Amateur telescope making http://home.netcom.com/~mpeck1/astro/astro.html 

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