Thread: Mirror substrates Pyrex vs exotics.
View Single Post
  #2  
Old 18-05-2015, 11:12 PM
Shiraz's Avatar
Shiraz (Ray)
Registered User

Shiraz is offline 		 
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,918
http://www.rfroyce.com/pyrex.htm

http://www.skyandtelescope.com/astro...lescope-myths/

probably worth a read Andrew, if you haven't already come across them.

also note that the Riccardi Honders design is based on crown glass optics (eg BK7) and seems to be successful.
Last edited by Shiraz; 18-05-2015 at 11:33 PM.
Reply With Quote