Merlin66
28-11-2017, 09:40 AM
http://www.willbell.com/tm/tm6.htm
A comprehensive guide to astronomical optics which will answer all your questions....
I bought this recently to replace my missing copy....which has just been found!!!
In excellent, as new, condition.
Asking $20 plus post.
A comprehensive guide to astronomical optics which will answer all your questions....
I bought this recently to replace my missing copy....which has just been found!!!
In excellent, as new, condition.
Asking $20 plus post.