Quote:
Originally Posted by ausastronomer
Hi Mike,
The Meade SN-10 is a Schmidt Newtonian, not a Maksutov Newtonian. The curves in the Schmidt Corrector are much easier to generate and it is a lot thinner than a corresponding aperture Makstov Corrector. This is evidenced by the fact that Meade Schmidt Cassegrains are available in apertures up to 16". These use the same corrector as would be used in a 16" Schmidt Newtonian.
Cheers,
John B
|
Thanks for the clarification John. This is the 'displaying the ignorance' part of things.
I was under the impression that a Schmidt corrector would be about the same level of production difficulty as a Mak. Obviously not!
I also was dumb enough to think the Meade was a Mak Newt.
So let me ask the same question for a Schmidt Newt: Fitted with an MDCC, a 10" or even 12" Schmidt Newt would give good bang for the buck, but there's not that many around. Is it just that folks prefer the SCT, even though it's not as fast and presumably far more costly?
The background is that now, with USB Liveview + USB focussers, the inconvenience of a high focusser position is far less important, so a low-cost Dob-derived Schmidt Newtonian on EQ6 could be attractive, especially for imaging, with the occasional EP session.
Perhaps I'm just being pedantic, too
