Location: '34 South' Young Hilltops LGA, Australia
Posts: 1,481
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
Edit : Despite my tongue in cheek quip about it's lack of usefulness - I bow to his astounding optical skill. WOW!
Last edited by OzEclipse; 08-02-2013 at 12:25 AM.
Reason: add comment
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!
- not. Put it in a C14 and you have a 350mm aperture, 12x with a 30mm exit pupil. 
