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Old March 13th 19, 12:20 PM posted to sci.astro.amateur
StarDust
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Default Rich field telescope?

On Wednesday, March 13, 2019 at 4:48:27 AM UTC-7, Martin Brown wrote:
On 13/03/2019 07:52, RichA wrote:
On Tuesday, 12 March 2019 13:42:52 UTC-4, StarDust wrote:
On Tuesday, March 12, 2019 at 8:17:07 AM UTC-7, JBI wrote:
On 3/12/19 5:24 AM, StarDust wrote:
On Tuesday, March 12, 2019 at 2:23:23 AM UTC-7, StarDust wrote:
Seems, hew design?

https://op2.0ps.us/978-550-ffffff-no...2s-00-main.jpg

https://shop.opticsplanet.com/bresse...SABEgI5RPD_BwE


This scope has been around for nearly two years. Reviews aren't great,
but typical for the price and wide field. Google is your friend.


The only real innovation is hiding the star diagonal in the main tube.

That's what it says, rich-field!
But is it flat field or what?


Just a plain Fraunhofer achromat and a fast one. Will have a bit of colour, not great for planets.


Fast refractors and wide fields tend to be demanding on eyepieces too.
There is no free lunch.

--
Regards,
Martin Brown


I think, this system is a step simpler than Newts, no CO, it has no primary mirror, front lens is focusing light to a secondary 45 deg mirror in the back, which diverts the light to outside.
My guess!!!!!