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Old 13-10-2013, 05:26 PM
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RickS (Rick)
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M 16 in narrowband with a slight twist

Taken from the light polluted inner suburbs of Brisbane, the Eagle Nebula in Hubble palette narrowband but with RGB stars instead of those horrible magenta things. This is my first attempt at a full narrowband image. I think it looks OK but I've thought that before and been wrong
Constructive criticism is appreciated

Scope: Ceravolo C300 @ f/9 = 2760mm FL, Atlas focuser
Mount: AP900
Camera: U16M
Filters: Astrodon E series Gen 2 LRGB
Guiding: Lodestar / MMOAG
Image scale: 0.67 arcsec/pixel
Exposures: 32x900s Ha, 49x900s O3, 48x900s S2, 5x300s R, 5x300s G, 5x300s B (33.5 hours)

Larger version here:
http://rickstevenson.smugmug.com/Ast...rop-med-X3.jpg

Close up crop here:
http://rickstevenson.smugmug.com/Ast...op2-med-X3.jpg

Cheers,
Rick.
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  #2  
Old 13-10-2013, 05:36 PM
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Bassnut (Fred)
Narrowfield rules!

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Wow that's excellent for 1st go

I like the whispy lightness, gives great 3d effect against the darker elements
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  #3  
Old 13-10-2013, 05:38 PM
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Quote:
Originally Posted by Bassnut View Post
Wow that's excellent for 1st go

I like the whispy lightness, gives great 3d effect against the darker elements
Thanks, Fred! I thought you might be horrified by the stars
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  #4  
Old 13-10-2013, 05:43 PM
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tilbrook@rbe.ne (Justin Tilbrook)
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That's pure magic Rick!

A real triumph with RGB stars, the hours spent really shows.

Cheers,

Justin.
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  #5  
Old 13-10-2013, 05:45 PM
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Bassnut (Fred)
Narrowfield rules!

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Quote:
Originally Posted by RickS View Post
Thanks, Fred! I thought you might be horrified by the stars
I am . You get away with it this time, just don't do that again
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  #6  
Old 13-10-2013, 05:46 PM
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ozstronomer (Geoff)
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Great Image Rick, I do like it without the Magenta stars well done
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  #7  
Old 13-10-2013, 05:49 PM
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This image really does it for me! I love the eagle close up, my wide field renditions never do it justice.
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  #8  
Old 13-10-2013, 05:54 PM
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jjjnettie (Jeanette)
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My only complaint is that I'd like to see more contrast around the Pillars. The finer detail kinda merges into the back ground.
Great photo though.
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  #9  
Old 13-10-2013, 06:17 PM
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naskies (Dave)
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Sublime, Rick! The RGB stars are a nice twist indeed.
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  #10  
Old 13-10-2013, 07:15 PM
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That is a truly superb image Rick. Holy cow, that is your first NB? As JJJ says contrast could be increased around the pillars which are after all the subject of the image. But wow, that is a fine image. Your mastering all this extremely quickly and the Ceravolo is a real gem of a scope.

Greg.
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  #11  
Old 13-10-2013, 07:19 PM
Dennis
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Move over Hubble, Rick is the new narrowband king!

Cheers

Dennis
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  #12  
Old 13-10-2013, 07:45 PM
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Hi Rick,
Wow - that's a perfect picture - so much detail.
You're convincing me to go narrowband.
That's a nice touch - pasting those RGB stars in.
Why doesn't everyone do that?

cheers
Allan
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  #13  
Old 13-10-2013, 07:54 PM
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TimberLand (Justin)
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If light pollution is giving you grief I would love to see how your beast goes setup at a dark site. I would offer my farm but I only have darkness to the south east and it is only a small farm.

WOW.

Justin.
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  #14  
Old 13-10-2013, 07:56 PM
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Quote:
Originally Posted by tilbrook@rbe.ne View Post
That's pure magic Rick!

A real triumph with RGB stars, the hours spent really shows.

Cheers,

Justin.
Thanks, Justin!

Quote:
Originally Posted by Bassnut View Post
I am . You get away with it this time, just don't do that again
I appreciate the first time waiver, Fred

Quote:
Originally Posted by ozstronomer View Post
Great Image Rick, I do like it without the Magenta stars well done
Thanks, Geoff.

Quote:
Originally Posted by Peter.M View Post
This image really does it for me! I love the eagle close up, my wide field renditions never do it justice.
Thanks, Peter. I am enjoying the longer FL even though it's a lot more work.

Quote:
Originally Posted by jjjnettie View Post
My only complaint is that I'd like to see more contrast around the Pillars. The finer detail kinda merges into the back ground.
Great photo though.
Thanks, JJJ. I'll take a look at that. I always learn a lot from posting an image here.

Quote:
Originally Posted by naskies View Post
Sublime, Rick! The RGB stars are a nice twist indeed.
Thanks, Dave. I appreciate your offline comments and assistance as well!

Quote:
Originally Posted by gregbradley View Post
That is a truly superb image Rick. Holy cow, that is your first NB? As JJJ says contrast could be increased around the pillars which are after all the subject of the image. But wow, that is a fine image. Your mastering all this extremely quickly and the Ceravolo is a real gem of a scope.

Greg.
Thanks, Greg. It's my first three colour NB. I've played with a couple of Ha/OIII bi-colours. I'll have a tinker with the contrast and see if I can do something. The challenge is always to avoid unwanted side-effects!

Quote:
Originally Posted by Dennis View Post
Move over Hubble, Rick is the new narrowband king!

Cheers

Dennis
Thanks, Dennis. I'm not sure I have any claims to royalty at this stage much less displacing Hubble, but I'm happy to have produced an image that looks halfway reasonable. If I look back at it in a years time and cringe then I guess that's a good thing too
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  #15  
Old 13-10-2013, 08:18 PM
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strongmanmike (Michael)
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Firstly, that's a LOT of exposure on such a bright object ...I think Freddo is having an impact on many of you don't know how you all fit them in , well I know how Fred does but you mate, amazing

Now to the image...well I happen to like some magenta in the stars of a narrowband image I think it can impart some impact and that original Hubble look, to me it can look good provided it is toned down from what is inevitably present in a first pass SIIHaOIII combine...having said that though, I also like no magenta in the stars too

The image is really quite good and any alternatives like bringing some of the dynamic variation in the contrast across the image back and upping the colour variation and saturation would be just variations sooo not worth commenting further on really

Very well done Rick ...I wonder if Jase will hammer you for imaging such a well imaged object (so well) with that amazing kit of yours bet he doesn't

Mike
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  #16  
Old 13-10-2013, 08:54 PM
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DavidTrap (David)
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Great work Rick. I really like the RBG stars.

That list of topics you need to cover in your tute is getting longer and longer

DT
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  #17  
Old 13-10-2013, 08:58 PM
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I love it Rick. Stars feel right, contrast not overdone.
If I could get my NB colours to look like that I'd be a happy man

I'd be interested in the rough PI workflow and colour blends you used actually if you get time or feel the inclination to share sometime. Easier said than done getting it so natural (as you know!)
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  #18  
Old 13-10-2013, 09:22 PM
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RickS (Rick)
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Quote:
Originally Posted by alpal View Post
Hi Rick,
Wow - that's a perfect picture - so much detail.
You're convincing me to go narrowband.
That's a nice touch - pasting those RGB stars in.
Why doesn't everyone do that?

cheers
Allan
Thanks, Allan. It did take a fair amount of experimentation to get the star transplant working in PixInsight. Perhaps it will be easier next time?

Quote:
Originally Posted by TimberLand View Post
If light pollution is giving you grief I would love to see how your beast goes setup at a dark site. I would offer my farm but I only have darkness to the south east and it is only a small farm.

WOW.

Justin.
Thanks, Justin. I do get out to dark sites for a couple of nights once a month if the new moon weather is good. It's just nice to be able to do a bit of imaging at home and a bit more convenient.

Quote:
Originally Posted by strongmanmike View Post
Firstly, that's a LOT of exposure on such a bright object ...I think Freddo is having an impact on many of you don't know how you all fit them in , well I know how Fred does but you mate, amazing

Now to the image...well I happen to like some magenta in the stars of a narrowband image I think it can impart some impact and that original Hubble look, to me it can look good provided it is toned down from what is inevitably present in a first pass SIIHaOIII combine...having said that though, I also like no magenta in the stars too

The image is really quite good and any alternatives like bringing some of the dynamic variation in the contrast across the image back and upping the colour variation and saturation would be just variations sooo not worth commenting further on really

Very well done Rick ...I wonder if Jase will hammer you for imaging such a well imaged object (so well) with that amazing kit of yours bet he doesn't

Mike
Thanks, Mike. I really only got that much data because I was out chasing the dim parts of the Helix every night and needed something for the scope to do until the Helix rose out the the trees at 57 degrees elevation. It did pay off though - the data was a pleasure to work with.

Quote:
Originally Posted by DavidTrap View Post
Great work Rick. I really like the RBG stars.

That list of topics you need to cover in your tute is getting longer and longer

DT
Thanks, David. Might need to be an intensive week long course

Quote:
Originally Posted by RobF View Post
I love it Rick. Stars feel right, contrast not overdone.
If I could get my NB colours to look like that I'd be a happy man

I'd be interested in the rough PI workflow and colour blends you used actually if you get time or feel the inclination to share sometime. Easier said than done getting it so natural (as you know!)
Ta, Rob. I'll send you my processing notes. I think David is keen to have another PI sewing circle later in the year so we might get a chance to compare notes over a hot laptop
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  #19  
Old 13-10-2013, 09:26 PM
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Shiraz (Ray)
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Congrats Rick, that is a super image. nice smooth colour with fine detail - top shelf. Stars just drop in unobtrusively and look perfectly natural. Regards Ray
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  #20  
Old 13-10-2013, 09:39 PM
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John Hothersall
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That's a beautiful result, stars do fit in seemlessly like Ray says. The SII is blended very smoothly but I tend to have the SII as a much stronger presence dominating the outer parts, but as usual with NB art is a personal taste.

The longer fl Ceravolo option has given the pillars better edge and shadow detail and with the big sensor you get all the important bits in too.

John.
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