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Old 14-06-2020, 09:38 AM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,431
Quote:
Originally Posted by glend View Post
...... Frankly a hyperbolic primary scares me.
Why? RC's have hyperbolic primary and secondary optics. I have quite a nice RC that works very well

There are plenty of rubbish telescopes with spherical and parabolic components out there....hence the design is rarely the issue, but if implemented poorly/cheaply , it's likely to disappoint regardless of the required curves.
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