[IanP]

Horsehead and Flame Nebula
This is a combination of the broadband RGB from late-Feb 2013 http://www.iceinspace.com.au/forum/showthread.php?t=103484
and the currently acquired images in Ha. Total Ha is worth over 2h in 2-3min subs @ Iso1600.
While using the NBRGB script I tried several options of the RGB-to-Ha ratio and in my opinion, rather conservative, I think, 0.5xHa was the value I liked the most.
Cam: EOS 60Da + Ha Clip Filter
Scope: ED80TCF
Guiding: PHD guided CPC925
Stacked, processed and NBRGB-combined in PixInsight …