Thread: Testing Narrow Band: a long focal length M42
View Single Post
  #8  
Old 01-01-2012, 06:26 PM
Bassnut's Avatar
Bassnut (Fred)
Narrowfield rules!

Bassnut is offline 		 
Join Date: Nov 2006
Location: Torquay
Posts: 5,065
Is that a single 35min exposure or....
Whats the BW of the Ha filter?
Reply With Quote