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!