View Single Post
  #81  
Old 23-11-2013, 08:43 AM
Satchmo's Avatar
Satchmo (Mark)
Registered User

Satchmo is offline
 
Join Date: Dec 2005
Location: Sydney
Posts: 1,858
Quote:
Originally Posted by alpal View Post
I thought that ion milling obtained 1/100th wave performance?

http://www.rcopticalsystems.com/tele...n_milling.html
Thats nice advertising about what Ion milling is capable of in a research situation .

Have a look at the link on that page showing final ion milled results of an RC 24" - P-V is 1/10 wave - this would probably have been around 1/4 wave if only rotational symmetric polishing had been carried out ( easy enough to do with pitch polishing )
Reply With Quote