View Full Version here: : NGC 3576 in colour
Peter Ward
05-05-2010, 11:44 AM
Added some colour data. Not all that happy with the result as the seeing last light (between the clouds) was pretty dreadful... anyway here 'tis
http://www.atscope.com.au/BRO/gallery55.html
Bolts_Tweed
05-05-2010, 11:47 AM
Nice Peter - I really like the way you've covered the dynamic range in the image. I found it really difficult (buts thats just my inability showing through).
Mark Bolton
multiweb
05-05-2010, 12:04 PM
The color blend is very nice. You've kept the pink areas on the right vs. the warmer yellowish tinge on the left. That is more obvious in RGB shots but for an Ha blend it's really well done. :thumbsup:
strongmanmike
05-05-2010, 12:21 PM
Yeh nice one Peter :thumbsup:
Mike
h0ughy
05-05-2010, 12:34 PM
Love the neb data Peter - thats awesome, but the stars top right and left are "comafied"?
Peter Ward
05-05-2010, 12:35 PM
Thanks Mark, Marc and big Mike. I'm still playing with the processing on this one....
The Met man says it will be clear later this week....some high res L data will be a welcome addition :)
Bassnut
05-05-2010, 12:40 PM
Excellent Peter, the dynamic range is very appropriate and gives it vibrancy without blooming and retaining detail in the bright bits.
Peter Ward
05-05-2010, 12:42 PM
Sort of. The sheer size of these 16803 sensors makes getting everything dead nuts on quite a challenge and you've picked up on a teeny bit of tilt in the system that has yet to be rectified.
Peter Ward
05-05-2010, 12:44 PM
Narrow field rules! :D
h0ughy
05-05-2010, 12:46 PM
trial and error to get it square or is there a way to make the camera sensor square Peter?
Peter Ward
05-05-2010, 12:50 PM
A bit of 4x2 should work....
h0ughy
05-05-2010, 12:54 PM
thats no way to treat the camera Peter by using a lump of 4x2 ;):lol:
marc4darkskies
05-05-2010, 02:02 PM
Yeah it's definitely a tough one to process - rich star field, faint neb. Your colour looks good but it lacks vibrancy IMO. The depth in your Ha (red) seems less than your raw Ha frame would suggest. How about adding some more Ha to the Red channel?
Too bad you can't show full res ... we're missing a lot not seeing that. Maybe you need a Pbase account?! :)
Cheers, Marcus
alan meehan
05-05-2010, 02:49 PM
Peter you done well ,i knew it would come up sharp with some colour
ALAN
DavidTrap
05-05-2010, 03:47 PM
If you plan to treat it like that, I'll trade you a Meade DSI II for you to take your aggression out on!
Great image too.
DT
Peter Ward
05-05-2010, 03:52 PM
Ta Marcus...I did a technicolour version but frankly didn't like it as much. That said...gave it a tweak just for you Marcus :)
I've yet to get some L data, plus only got 20 mins each of RGB...a case of "watch this space" ... if the weather co-operates ;)
As for full res-version....there are no technical issues that would prevent me doing so...I just have this aversion.
marc4darkskies
05-05-2010, 05:14 PM
Thats more like it! :)
< hmmmph> ... chip the size of a planet and won't show us what it can do..... say, I don't s'pose you've noticed my humble 2 year old rendition through a crumby little 6" (here (http://www.pbase.com/gailmarc/image/94206350/original)) has more detail than yours, hmmm? :whistle: :poke:;)
DavidTrap
05-05-2010, 05:28 PM
Are you two going to draw "scopes" at twenty paces?
I think the appropriate quote from Spaceballs would be, " I see your Schwartz is as big as mine!"
DT
Peter Ward
05-05-2010, 05:42 PM
Nothing crumby at all about a 6" Taka! :thumbsup::thumbsup:
Actually the respective renditions are on a (resolution) par. Seeing has to be exceptional for a larger aperture to have much affect.
multiweb
05-05-2010, 06:35 PM
The repro with the added Ha certainly packs a punch. Much sharper details overall especially in the cores. Almost completely resolved that little cluster in one of them. Nice. :thumbsup:
Hagar
05-05-2010, 06:47 PM
Very nice Peter, very vibrant colours which light the image up and lift it to a new level.
Peter Ward
06-05-2010, 09:41 AM
Thanks Marc...I may have to do a Fred and get some OIII & SII data :)
Paul Haese
06-05-2010, 10:51 PM
Very nice, huge field, great star colours and smooth but containing heaps of detail. Lovely work.
Peter Ward
07-05-2010, 10:29 AM
Thanks Paul. I managed to get some full res data (as opposed to mainly binned 2x2) after another clear night here ....and looking at the raw data...am thinking the whole thing looks a little clunky and needs a total re-do.
To explain..here is a crop of the nebula core from last nights effort with minimal processing....
http://www.atscope.com.au/BRO/gallery56.html
Ah...it never ends!
Bassnut
07-05-2010, 11:52 AM
Now that core is very tidy indeed, masterfull (minimal?) processing, cant see the need for a redo on that. A bit more decon perhaps, but thats all.
Paul Haese
07-05-2010, 01:39 PM
Yeah that core looks superb. So smooth and natural looking. The detail looks 3D too. Always time for reprocessing.
marc4darkskies
07-05-2010, 11:13 PM
Ahh HAAAA ... some full res at last!! :) Nice detail. Yep, like Fred said - some gentle decon will highlight that detail very nicely. Looks like better res than the original (?)
Great work Peter. :thumbsup:
Peter Ward
09-05-2010, 02:49 PM
Thanks Jase, Marcus, Fred..... Nice to get some praise from some heavy rollers :)
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