Quote:
Originally Posted by pmrid
and my prime interest is in imaging nebulae and galaxies.
Peter.
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Well, they are quite different filter wise. There is a trend to Ha RGB instead of LRGB for nebs, but galaxies are broadband scources, so traditional LRGB is still (and only) the go for them.
At a minimum, a set of LRGB and Ha would serve well, then OIII and SII together really to do neb NB properly.