Hi Peter, I am one of the guilty who post blue images of Tarantula nebula. I think I understand what you are saying with regard to emmission nebula colour like that displayed in the Tarantula Nebula. I have one question. I notice on your web site an image of Eta Carinae Nebula taken with an SBIG CCD camera. It appears to all wants and purposes to have the same colour cast and tone as my images of Eta Carinae. I realy have trouble understanding why an item like Eta C can be so similar yet Tarantula so diferent. If the blue colour isn't there in reality, where is it coming from? Images of tarantula taken and corrected by Hubble show quite a blue core with red to pink surronds which I would have thought indicated a large reflective base for this nebula.
How on Gods earth do you decide which image requires added red. We are not all fortunate or financial enough to purchase a large format CCD which displays true colours, much and all as I would like to. After all most of us are taking photos to develope some skills and for our own gratification and if the colour is wrong does it realy matter.
