[Peter Ward]

Originally Posted by Tandum

Theo, you own a monster RC, do you get this flaring problem that others have? Here's an example : http://www.iceinspace.com.au/forum/a...se.php?a=64300

And another :
http://www.atscope.com.au/BRO/gallery10.html

I'm thinking they make huge scopes as RC scopes as it's cheaper to make corrected mirrors than make corrected lenses.

Put a bright star just outside a camera's FOV and all telescopes will show similar diffraction effect....its a basic property of light, not RC's .