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Are quality Cassegrains rare?

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#51 luxo II

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Posted 16 January 2020 - 10:50 PM

...the website is quite ambiguous on whether they are D-K's or classical Cassegrains (they call them D-K's, yet they talk about hyperbolic secondary and parabolic primary scratchhead2.gif )

The website states quite clearly they are either DK (visual) or RC (astrographs).



#52 Axunator

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Posted 17 January 2020 - 12:24 AM

The website states quite clearly they are either DK (visual) or RC (astrographs).


It does now. My post was made over a year ago, the description was much more ambiguous back then.

Edited by Axunator, 17 January 2020 - 12:25 AM.



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