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  #21  
Old 21-05-2016, 01:08 PM
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codemonkey (Lee)
Lee "Wormsy" Borsboom

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Ok, finally got around to reprocessing this one. I had planned to get new RGB as the data was dodgy, but I've decided to move onto other things.

I think this is an improvement on noise levels, colour and stars, although the stars still aren't great due to dodgy RGB.

New version attached to original post, full res on Astrobin.
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  #22  
Old 21-05-2016, 01:51 PM
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Atmos (Colin)
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That is really nice Lee
Question though, there are a lot of grey stars, is that due to not having the colour depth (RGB data) or something else?
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  #23  
Old 21-05-2016, 01:53 PM
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Slawomir (Suavi)
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I really like the new revision Lee. A definite improvement over the previous versions - colours are much nicer than Version A and stretching histogram further (on top of a few other Jedi mind tricks in PI) resulted in a beautiful photograph.
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  #24  
Old 21-05-2016, 02:01 PM
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codemonkey (Lee)
Lee "Wormsy" Borsboom

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Quote:
Originally Posted by Atmos View Post
That is really nice Lee
Question though, there are a lot of grey stars, is that due to not having the colour depth (RGB data) or something else?
Cheers mate! There's a couple of things at play there.

#1 I used a mask to push the vibrance/saturation on the galaxy and did this much more heavily on the galaxy than I did on the stars/background.

#2 The RGB data isn't nice... the star shapes between red and blue in particular are very different. For some reason, even with good guiding I've found now that I seem to get very high eccentricity when binning 2x2 and I think that, combined with less than great seeing/tracking on this, it screwed up my stars. I had a lot of magenta stars, and to combat this I took the lazy way out: whilst protecting the galaxy with a mask, I simply desaturated magenta.

Quote:
Originally Posted by Slawomir View Post
I really like the new revision Lee. A definite improvement over the previous versions - colours are much nicer than Version A and stretching histogram further (on top of a few other Jedi mind tricks in PI) resulted in a beautiful photograph.
Thanks Suavi :-) I overdid noise reduction in the second version, and in the first I did none. This one I think I got a good balance there and it enabled me to push the data a bit more to bring out the tidal tails a bit more.
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  #25  
Old 21-05-2016, 11:09 PM
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strongmanmike (Michael)
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Hey the latest one looks great Lee, love the bright colourful detail in the ball bag (just turn it 90deg to the left ), the antennae are showing really nicely too.

Well done and good on you for persevering

Mike
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  #26  
Old 22-05-2016, 08:26 AM
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codemonkey (Lee)
Lee "Wormsy" Borsboom

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Thanks Mike! I saw that version on another monitor and it had some nasty med/low frequency blotching from the noise reduction, so I had another pass at that. Exacerbated some halos on the bigger stars, but eh, good enough now I think.

lol @ the composition comment. I'd originally planned to have it 90deg clockwise from the current version, but my wife convinced me that it was better this way. In the end, I came to agree, as is usually the case whenever the wife argues a point
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  #27  
Old 22-05-2016, 08:27 AM
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strongmanmike (Michael)
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lol @ the composition comment.
Even through a scope visually it looks like a scrotum
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  #28  
Old 22-05-2016, 08:30 AM
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codemonkey (Lee)
Lee "Wormsy" Borsboom

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Even through a scope visually it looks like a scrotum
hahah. I think my wife even made a similar comment when she first saw this image.
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  #29  
Old 23-05-2016, 11:44 AM
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RickS (Rick)
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Nice repro, Lee!

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Originally Posted by strongmanmike View Post
Even through a scope visually it looks like a scrotum
Have you tried turning your "Ibex" upside down, Mike?
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  #30  
Old 25-05-2016, 09:35 PM
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Great picture Lee. The detail is superb. It's actually quite a bright object, so 5 plus hours is probably enough to get the essesntial details.
Geoff
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  #31  
Old 25-05-2016, 10:05 PM
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strongmanmike (Michael)
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Have you tried turning your "Ibex" upside down, Mike?
..just saw this comment Rick no I didn't but heck you're right....they look Italian!
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  #32  
Old 28-05-2016, 09:09 AM
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codemonkey (Lee)
Lee "Wormsy" Borsboom

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Great picture Lee. The detail is superb. It's actually quite a bright object, so 5 plus hours is probably enough to get the essesntial details.
Geoff
Thanks Geoff, appreciate it. There's some weird artefacts around the larger stars and even between stars and background galaxies as a result of the noise reduction, but I can't be bothered reprocessing it again, so I'll just have to call it done... for now.

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..just saw this comment Rick no I didn't but heck you're right....they look Italian!
Bollocks, bollocks everywhere...
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