Thread: Mak-Newts
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Old July 18th 16, 04:25 PM posted to sci.astro.amateur
StarDust
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Default Mak-Newts

On Monday, July 18, 2016 at 7:30:52 AM UTC-7, Chris L Peterson wrote:
On Mon, 18 Jul 2016 02:11:58 -0700 (PDT),

On Monday, 18 July 2016 04:07:07 UTC-4, StarDust wrote:
Anyone had a chance to own/use this 8" Mak-Newt from Orion?
What are the pros/cons of the scope?
It has the same CO-33% than my C-11!
http://www.telescope.com/Gift-Center...767/p/9978.uts


Really defeats the purpose of a Mak-Newt which had as a selling point a smaller secondary by percentage than a Mak-Cass or SCT. There is ZERO reason to buy it over an Mak-Cass or SCT.


Not sure about that. First of all, this is a photographic instrument,
so the size of the obstruction is largely irrelevant. Depending upon
the design details, a Mak-Newt has a larger flat field than a
Mak-Cass, and both of the Mak designs have less off-axis aberration
than an SCT.


Right! It's in the name - Astrograph-! So, it's primary purpose is photography, not visual observation!