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  #1  
Old 12-05-2015, 08:23 PM
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RickS (Rick)
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A fiery's Cat's Paw

Some data I had hanging around from last year. This is NGC6334 @ 2760mm focal length (Ceravolo 300 astrograph @ f/9) with an Apogee U16 camera. Approximately 8 hours of Ha, 9 hours of Oiii and a couple of hours of RGB through thick light pollution to attempt to get some star colour.

The Oiii is pretty dim so this is mostly a Ha image. It's probably a bit too colourful for some tastes. The RGB stars didn't work as well as I would have liked. Still, I think it's an interesting image

Higher res version at Astrobin: http://www.astrobin.com/full/178548/C/ Sorry about the lack of ICC Profile if you have a screen that doesn't approximate sRGB

Cheers,
Rick.
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  #2  
Old 12-05-2015, 08:28 PM
Stevec35 (Steve)
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Certainly an interesting colour scheme Rick and fiery is certainly a good description. Plenty of nice detail there.

Cheers

Steve
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  #3  
Old 12-05-2015, 08:29 PM
niharika
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wohhhh
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  #4  
Old 12-05-2015, 09:07 PM
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Originally Posted by Stevec35 View Post
Certainly an interesting colour scheme Rick and fiery is certainly a good description. Plenty of nice detail there.

Cheers

Steve
Thanks, Steve!

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Originally Posted by niharika View Post
wohhhh
Thanks, Raki, I think
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  #5  
Old 12-05-2015, 09:35 PM
jase (Jason)
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Sunglasses needed but you also get a thumbs up for being able to maintain the detail despite the image colour vibrancy. Really electrifying palette Rick. Dare I say it, its growing on me. Though, I would have liked to have seen more of the OIII emission coming through and maybe tone it down a little.
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  #6  
Old 12-05-2015, 09:51 PM
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strongmanmike (Michael)
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love it Rick bold and fiery for sure... and hey, if my recent M83 was a bit (?) overprocessed, hell, this was pushed beyond the event horizon mate

Very similar to your Veil shot, a new (Ricks) world order..? Straight onto glass or ceramics mate, a work of art

Mike
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  #7  
Old 12-05-2015, 09:55 PM
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Impressive, but I'll be honest - it's a bit too much for my conservative/traditional tastes!

DT
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  #8  
Old 12-05-2015, 10:28 PM
Ross G
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A great looking photo Rick.

Nice composition and I love the strong, rich colours.

Ross.
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  #9  
Old 13-05-2015, 07:05 AM
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Nice Rick! Smacked me in the face with that colour. Awesome stuff.
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  #10  
Old 13-05-2015, 07:56 AM
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Wow, do you like some food with your chilli's??

Its normally a dead boring object, just all red with very little interesting feature. But your colour scheme has livened it up. The yellow is showing lots of billowy detail there.

Greg.
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  #11  
Old 13-05-2015, 10:13 AM
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Originally Posted by jase View Post
Sunglasses needed but you also get a thumbs up for being able to maintain the detail despite the image colour vibrancy. Really electrifying palette Rick. Dare I say it, its growing on me. Though, I would have liked to have seen more of the OIII emission coming through and maybe tone it down a little.
Thanks, Jase! There was very little Oiii unfortunately. I have noticed that in a couple of other narrowband images. Even Don Goldman couldn't dig up much of it I may yet tone it down a little more but you should have seen the original

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Originally Posted by strongmanmike View Post
love it Rick bold and fiery for sure... and hey, if my recent M83 was a bit (?) overprocessed, hell, this was pushed beyond the event horizon mate

Very similar to your Veil shot, a new (Ricks) world order..? Straight onto glass or ceramics mate, a work of art

Mike
Thanks, your Mikeness! You gotta push the boundaries occasionally

I'm expecting a couple of large Veil pics back from the framers this week.

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Originally Posted by DavidTrap View Post
Impressive, but I'll be honest - it's a bit too much for my conservative/traditional tastes!

DT
No probs, David. I did go a little OTT and expected mixed reactions.

Quote:
Originally Posted by Ross G View Post
A great looking photo Rick.

Nice composition and I love the strong, rich colours.

Ross.
Thank you, Ross.

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Originally Posted by Rex View Post
Nice Rick! Smacked me in the face with that colour. Awesome stuff.
Ta, Rex!

Quote:
Originally Posted by gregbradley View Post
Wow, do you like some food with your chilli's??

Its normally a dead boring object, just all red with very little interesting feature. But your colour scheme has livened it up. The yellow is showing lots of billowy detail there.

Greg.
Thanks, Greg. I was pretty happy with the detail. The chrominance mapping I did on the Ha is a nice trick but one that I could overuse if not careful. I may script it up so I can experiment easily with more subtle treatments.

Cheers,
Rick.
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  #12  
Old 13-05-2015, 10:14 AM
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Rod771 (Rod)
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Cat on a hot tin roof?

Looks like you've had fun with this one, Rick. I like it!
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  #13  
Old 13-05-2015, 01:36 PM
Placidus (Mike and Trish)
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Hi, Rick,

A refreshing approach. I agree with you that this one has very little OIII (or for that matter SII) making it tricky.

Best,
Mike
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  #14  
Old 13-05-2015, 01:55 PM
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Cat on a hot tin roof?

Looks like you've had fun with this one, Rick. I like it!
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Originally Posted by Placidus View Post
Hi, Rick,

A refreshing approach. I agree with you that this one has very little OIII (or for that matter SII) making it tricky.

Best,
Mike
Thanks Rod & Mike!
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  #15  
Old 13-05-2015, 02:06 PM
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cometcatcher (Kevin)
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Very fiery shot! Just out of curiosity what makes the yellow? A mix of Ha OIII or something else?
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  #16  
Old 13-05-2015, 02:08 PM
DrWho
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The bright and vivid colour is like shouting out of the screen but overall it's a very good image, Rick
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  #17  
Old 13-05-2015, 02:42 PM
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Originally Posted by cometcatcher View Post
Very fiery shot! Just out of curiosity what makes the yellow? A mix of Ha OIII or something else?
Thanks, Kevin. The yellow is from the brightest Ha emissions. Searching for a technique to make straight Ha look more interesting when I was processing the Veil nebula mosaic I experimented with using the luminance to modify hue. I do it manually in PI with a couple of slightly hairy PixelMath expressions but when I get a chance I will write a script to automate it and make it easier to experiment with the settings.

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The bright and vivid colour is like shouting out of the screen but overall it's a very good image, Rick
Thanks, DrWho!
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  #18  
Old 13-05-2015, 02:59 PM
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rustigsmed (Russell)
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the cats paw? needs more punch! like the sabertooth tiger paw!
interesting to see how you've dealt with a Ha ultra heavy object.

Cheers

Russ
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  #19  
Old 13-05-2015, 05:27 PM
IanP
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There is no doubt this image is very “dramatic” as far as colours are concerned, but I like it; it’s full of details and well composed
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  #20  
Old 13-05-2015, 06:23 PM
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RickS (Rick)
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the cats paw? needs more punch! like the sabertooth tiger paw!
interesting to see how you've dealt with a Ha ultra heavy object.

Cheers

Russ
It's sometimes called the Bear Claw by northerners which is definitely more ferocious. Thanks for the comment, Russ.

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Originally Posted by IanP View Post
There is no doubt this image is very “dramatic” as far as colours are concerned, but I like it; it’s full of details and well composed
Thanks, Ian. Sometimes my experiments work and sometimes experienced imagers reel back in horror
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