I finally collected the colour data for my Corona Australis image (NGC 6723, 6726, 6727, 6729, and IC 4812). I had collected and processed the luminance late last year, but had to wait till now before acquiring all the RGB data. I did originally collect it last year but made the mistake of acquiring the green data on a different night and hadn't realised that some of the nebulae are variable due to the variable stars R and TY Coronae Australis, which skewed my original colour data.
Large Image:
http://www.pbase.com/david_fitz_henry/image/146373474
Lum-2.5hrs, R-3hrs, G-3hrs, B-3hrs all through the "Bunyip 12.5" newtonian.