A number of years back, I went into the Refractor Forum and got into some polite discussions and some real brawls (but nothing really nasty) about the pros and cons of APOs and Newtonian Reflectors. I listened very carefully and discussed these and really got beat up when I said that a Newtonian could be built that would equal the performance of an Apochromatic telescope of equal aperture with regard to that fundemental building block of any image, a star's diffraction pattern..
Oh, how the fur flew on that one! After recording many statements from that forum's membership, I quietly stepped aside and started a project to put my money where my fat mouth was. It took a long time as I became increasingly ill with RA, but I finished that Newt and wrote a scientific article outlining my reasoning.
The article was accepted and is now in print in Astronomy Technology Today, (www.astronomytechnologytoday.com) , and I am sorry to report that at this point, you've got to subscribe in order to get access to my work, but that's the deal these days.
In any case, please note that I have no intention to going to the Refractor Forum to listen to science fact, science falsehoods and other remarks about what I did. I'm simply too crippled in my hands to answer.
My best advice for the APO owners was this. If they disagreed with my findings, they should consider writing their own scientific paper to refute my claims, with footnotes and all (!), get it accepted and printed for all to see.
That is how science is done. My article, while provocative, should be a prod for people to think about what they are saying, and what the manufacturers are claiming. I've added this topic here for the poor benighted Newtonian owner who has to listen to the superiority of refractors in general. All the time.
And with a little bit of luck, better instruments will follow. Even by ATMs. Even with Newtonians.
Edited by ed_turco, 27 April 2015 - 10:11 PM.