Re: [ATM] Touchy Refractive Index

["Bob May" <bobmay@nethere.com>]

I've come to find that your findings are quite real as I've seen a lot of
changes in the spot diagrams and so forth when playing with glasses in the
several programs that I've been using for refractor design.
I've come to believe, without having built any of the designs, that once you
get down near the final results, you pretty much have a good design with
anything near the right numbers.
Finally, I'd find that actually building any of the designs will find that
production errors in thickness, real refractive indices and actual ROC of
the curves will always make something a bit different than what the design
was supposed to be which is why there is so much final futzing about with
refractors in the end.
Bob May
http://nav.to/bobmay
bobmay@nethere.com
NEW! http://bobmay.astronomy.net


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