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Is this comparison not a little apples vs oranges?
Many well respected "Astrographs" out there are "Newts" (well in layout anyway) - eg the TAK Epsilon 180 is regarded as peerless, there are others such as the Orion UK models like the AG8. To me it seems that (in practice at least) a well corrected Newt can perform very well - at lower F numbers - so perhaps the conclusion is if you need F8-10 go for RC if you want F3-5 then a well corrected newt is the better option. Or have I got it all wrong?
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