Quote:
Originally Posted by OzEclipse
I've looked at it a few times and still can't understand how in snapping fluffy ducks did he polish the aspheric besselian surface of the corrector without vacuum deformation?
Awesome wide angle eyepiece  - not. Put it in a C14 and you have a 350mm aperture, 12x with a 30mm exit pupil.
Joe |
Looking at his raytrace and reading his comments on CN... I don't think he did. Maybe I missed him mentioning it, but it looks plano to me.
So Cassegrain yes maybe, but Schmidt no?
Edit: Have just re-read Rik's post,
and yes he did! Wow!