Thread: Fans on telescopes
View Single Post
  #1  
Old 28-01-2010, 08:27 PM
icytailmark (Mark)
Registered User

icytailmark is offline 		 
Join Date: Aug 2009
Location: sydney australia
Posts: 832
Fans on telescopes
i have seen many people put a fan on the end of their telescope and i was wondering why they do it?
Reply With Quote