View Full Version here: : Smile nebula :-) NGC3199
30-05-2012, 12:51 PM
Dear all, in the link below is a new HaOIIIRGB image from Coona, NGC 3199, another interesting object set in a very rich star field:
This time I didn't collect as much light as I usually do for other images, in particular on Ha and OIII, however, apart from a little noise higher than usual (I stretched a lot the narrowband trying to reveal all subtle nebular details), I am quite pleased with the result. It is quite interesting IMHO the interaction between OIII and Ha emissions on NGC3199 that produces a peculiar coloration of the nebula.
Details are on the related page.
I hope you will enjoy the view :)
30-05-2012, 01:15 PM
Beautiful colours Marco.
30-05-2012, 02:10 PM
It put a smile on my face!!
PS Noi che sorridi rimani giovani!
30-05-2012, 02:27 PM
Super cool field! That's a lovely image. I love the colours and subtlety in the processing.
Thanks for posting!
30-05-2012, 02:39 PM
That's a superb image Marco -
I looked at the largest size.
Thanks for posting & I'll include it on my target list.
30-05-2012, 05:58 PM
I like your images, they always inspire me!
30-05-2012, 06:22 PM
Nice field Marco. Interesting and very colourful. :thumbsup: Did you blend the Oiii in the blue channel and Ha in the red. What ratio do you usually use?
30-05-2012, 06:28 PM
That's a beauty and nicest I have seen of this area. It has the same sort of colour as the witch head nebula.
I have data of this one (among several objects) that I haven't processed yet. I'll have to get off my proverbial.
30-05-2012, 06:55 PM
This is a unique view Marco...I don't think I have seen this framing before nor the contrasting grey blue/purple in NGC 3199 - nice look :thumbsup:
30-05-2012, 08:16 PM
Lovely shot of the smile and the object I call the whirling dervish nebula..NGC 3247
( you have to rotate your image 90 deg counterclockwise to see the whirling dervish)
31-05-2012, 11:50 AM
31-05-2012, 05:50 PM
Very nice view Marco. This is a new one to me. All the best.
04-06-2012, 03:12 PM
Thanks you Lester!
Thanks Trevor ;)
Thanks for the name suggestion and comments Narayan :)
Thanks Mike ;)
Thank you Greg!
Thanks Marc! I don't use to blend Ha and/or OIII directly to a channel. What I do instead in PS is to add to the RGB a layer with the narrowband monochrome image, add a clipping mask "Hue and Saturation" on the narrowband, than check "colorize" box, set hue (Ha=350 OIII=192), saturation (100%), luminosity (-50) and than change the blending of the monochrome (now colorized) to "lighten". You can than experiment with curves and even retouching the hue of the narrowband you are adding to find the result that better matches your taste and goals.
That gives a much better control on the addition of NB to RGB..
You can see this technique described in several places in the net, (here (http://starizona.com/acb/ccd/software/ps_clipping.aspx) is a good tutorial, I use lighten instead of screen for blending).
Hope this help :)
Thanks Justin, you are very kind!
Happy to know I inspired one of your next targets Alpal !
Thanks Cam :)
Haha, nice to know that Mario! Cheers
Thank JJJ :)
04-06-2012, 07:58 PM
Nice balance of colouration Marco, interesting FOV.
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