Lagoon nebula.
3 hrs Ha, 1 hr R, 1 hr G, 1 hr, B. BRC-250 STXL-11002.
I am investigating a new procedure where full contrast of the Ha luminance image is not compromised in the final colour image by processes such as blending the Ha and R data to preserve colour balance.
High resolution here.
http://members.iinet.net.au/~sjastro/Lagoon_test.jpg
Steven