View Single Post
  #2  
Old 02-03-2008, 04:54 PM
monoxide's Avatar
monoxide
Registered User

monoxide is offline
 
Join Date: Oct 2006
Location: Adelaide
Posts: 658
no it doesn't quite work like that, from what i understand the baader film is a ND filter that blocks a high percentage of ALL wavelengths of light whereas the solar Ha filters are specialised narrowband filters that block all but a certain wavelength of light, thats why PST's etc cost so much.


someone else feel free to correct me if im wrong
Reply With Quote