Quote:
Originally Posted by gregbradley
Hi Marcus,
I found that pushing the Ha luminance will shrink the stars as you say and I have done this to the point where it starts to degrade the stars. If you push it too hard you get smaller stars with larger dull halos. Do you have a way around this, like perhaps a combine of Ha and lum used as luminance in the LRGB combine? I haven't done that.
Greg.
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Well, I don't have the perfect Ha recipe either (yet) but I usually blend the Ha with the Red (red on top as lighten) before creating the RGB and I add a carefully pre-blended Lum/Ha layer as lum only in PS. Opacities & layer masks to taste of course.
I'm paying more attention to matching star sizes in the channels these days too and some reduction is sometimes necessary (unless the seeing and focus was consistent throughout the data gathering, which is quite rare for me - I image over days without an autofocusser). In any case adding Ha makes this even harder and typically I'm never quite happy with the stars in my Ha shots. Maybe someone can give ME a better recipe!
Oh yes, I also usually throw a pure Ha layer in the mix as well later in the process to enhance emission detail but preserving my good stars from earlier steps. This always means careful layer masking though.
Pretty sure this doesn't help you
Cheers, Marcus