Thread: OIII 8.5nm vs 3nm under full moon
View Single Post
  #2  
Old 11-09-2014, 08:43 AM
SamD's Avatar
SamD (Sam)
Registered User

SamD is offline 		 
Join Date: Jan 2014
Location: Brisbane SW
Posts: 71
Yes Hugh, you ought to see a decent SNR improvement going from 8.5 to 3nm.

Annoyingly though, you lose the 495.9nm OIII line on the 3nm filter, but this is normally only about a third the strength of the main OIII line intensity.
Attached Thumbnails
Click for full-size image (EmissionLinesRelativeIntensities.jpg)
94.6 KB97 views
Reply With Quote