View Single Post
  #6  
Old 01-03-2013, 01:48 PM
erick's Avatar
erick (Eric)
Starcatcher

erick is offline
 
Join Date: Dec 2006
Location: Gerringong
Posts: 8,547
OK, here we go:

DN04 for your finderscope objective lens

DN02 for your 1.25" eyepieces

DN03 for your 2" eyepieces

As I said, I cannot imagine using a band heater for the secondary. Best is a heater that is attached to the back of the mirror. Check out:

http://www.kendrickastro.com/astro/newtonian.htmlThose split ones look useful?

Read this thread?

http://www.cloudynights.com/ubbthrea...2/Main/3809289
Reply With Quote