After grabbing the Ha the other day, I managed to collect the SII and OIII on Tuesday night and this is a fairly traditional and original style emission line filter palette, with no RGB.
As mentioned already I had some good seeing for this data collection so that's always good
With those prominent horns of nebulosity that sweep back over the main bright central "head", this nebula has always looked like the head of a magnificent Ibex to me
Capture details are under the image:
NGC 3576 The Ibex Nebula
100% Crop
Mike