It is a bit technical, but i enjoyed reading it.
For all to share
http://www.brayebrookobservatory.org/br ... PIECES.pdf
Credit to EJ Hysom
Evolution of Eyepiece
- wucheeyiun
- Posts: 1758
- Joined: Tue Sep 07, 2004 5:57 pm
- Location: marine parade
- Contact: