Hi,
Here's some Photo shop trickery to bring out HA regions while leaving the cyans in this 4 panel mosaic with an unmodded Canon 1100D.
I think it's all in the right spots.
Anyway it was good fun to do, chipped away at over the past month.
7 x 8 minute subs per panel, at ISO 1600, 4panels at f/6 220mm standard 80 to 300mm kit lens.
Stacked in Deep Sky Stacker .Processed in PS Cs2.
Cheers,
Justin.