Thread: What are your thoughts on a second hand Celestron SCT
View Single Post
  #31  
Old 09-01-2006, 04:38 PM
janoskiss's Avatar
janoskiss (Steve H)
Registered User

janoskiss is offline 		 
Join Date: Jan 2005
Location: Sale, VIC
Posts: 6,033
Don't the mirror coatings degrade after so many years?
Reply With Quote