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Moon Phase
CURRENT MOON
Waxing Gibbous
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02-11-2007, 03:43 PM
Astrophotographer
Join Date: Oct 2007
Location: Adelaide, Australia
Posts: 405
M42 in Arkaroola
M42 - Orion Nebula Location: Arkaroola SA Date: 20071006 Exposure: 1x10s + 2x90s + 2x240s @ 800ISO Camera: Nikon D200 Instrument: Celestron SCT 9.25, 6.3 reducer Guiding: SWED80, Toucam Pro Modded, GuideDog Processing: Stacked in DeepSkyStacker, In camera dark frame subtraction, Digital Processing in PS-CS2, Sharpening, Curves and colour correction.
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Last edited by wysiwyg; 02-11-2007 at 06:02 PM .
02-11-2007, 04:50 PM
on the highway to Hell
Join Date: May 2005
Location: Adelaide
Posts: 2,623
very very nice Mark,
i bet the stars hurt your eyes out there!
02-11-2007, 05:52 PM
Gravity does not Suck
Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
Well done you must be very happy with that image.
02-11-2007, 06:54 PM
Quietly watching
Join Date: Jul 2007
Location: Yarra Junction
Posts: 3,044
cracker of a first post . well done.
02-11-2007, 07:49 PM
Sir Post a Lot!
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
Beautiful image Mark, excellent control of all the exposures.
02-11-2007, 08:30 PM
Astrophotographer
Join Date: Oct 2007
Location: Adelaide, Australia
Posts: 405
Thanks Guys I appreciate the warm welcome.
I have now been dabling in Astrophotography for about 6 months now and started about a year ago getting my interest up in the area with the purchase of a 10" Dob by a friend.
Connected my camera to his scope and took my first image of the moon, from there on end it became an obsession.
I have been an active member of SCP for a while now and decided I needed to broaden my horizons as far as DSO knowledge is concerned.
I hope to discuss some interesting topics with you guys in the future.
Mark
02-11-2007, 09:18 PM
Support your local RFS
Join Date: May 2006
Location: Wamboin NSW
Posts: 12,405
Lovely first post Mark and also welcome to IIS.
02-11-2007, 09:23 PM
Registered User
Join Date: Aug 2005
Location: Hahndorf, South Australia
Posts: 4,373
Love it wysiwyg!
02-11-2007, 09:27 PM
Registered User
Join Date: Feb 2005
Location: Monto
Posts: 16,741
Love it.
02-11-2007, 10:35 PM
Barb and David
Join Date: May 2006
Location: Warragul. Victoria.
Posts: 2,293
Terrific image Mark
02-11-2007, 10:52 PM
The 'DRAGON MAN'
Join Date: Jan 2005
Location: In the Dark at Snake Valley, Victoria
Posts: 14,412
Hi Wizzy
Good to see you over here too
02-11-2007, 10:55 PM
sword collector
Join Date: Oct 2006
Location: Mount Evelyn
Posts: 2,925
Looking very good Mark, I might even say excellent or touch down
03-11-2007, 03:51 AM
Registered User
Join Date: Sep 2006
Location: Melbourne, Victoria
Posts: 3,916
Mark, I'm certain there's more valuable data that you could extract from this image. Keep an eye on the histogram as you process the image. Looks like some black clipping as occurred. Look forward to seeing more.
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03-11-2007, 11:02 AM
Astrophotographer
Join Date: Oct 2007
Location: Adelaide, Australia
Posts: 405
Quote:
Originally Posted by
jase
Mark, I'm certain there's more valuable data that you could extract from this image. Keep an eye on the histogram as you process the image. Looks like some black clipping as occurred. Look forward to seeing more.
Please explain, as I am only learning about Histograms. Are you taliking about Black point and Whitepoint setting? or something else.
03-11-2007, 11:04 AM
Astrophotographer
Join Date: Oct 2007
Location: Adelaide, Australia
Posts: 405
Quote:
Originally Posted by
mill
Looking very good Mark, I might even say excellent or touch down
Hey Martin,
How are those scope rings?
03-11-2007, 11:09 AM
Astrophotographer
Join Date: Oct 2007
Location: Adelaide, Australia
Posts: 405
Quote:
Originally Posted by
dugnsuz
Love it wysiwyg!
Thanks Doug, I have it mounted on a SW EQ6 Pro Ver 3.0 using a side by side plate along with the ED80 which I use for autoguiding.
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03-11-2007, 11:35 AM
Registered User
Join Date: Aug 2005
Location: Hahndorf, South Australia
Posts: 4,373
Quote:
Originally Posted by
wysiwyg
Thanks Doug, I have it mounted on a SW EQ6 Pro Ver 3.0 using a side by side plate along with the ED80 which I use for autoguiding.
Very nice setup, I'm drooling over those Moonlight focusers and motors!!!!
With regard to Histogram clipping have a look at this tutorial. Although the article is about ImagesPlus - principles are the same
http://www.itchysastro.net/avoiding_...m_clipping.htm
another one, more PS orientated (scroll down to middle of page)...
http://starizona.com/acb/ccd/software/ps_adj2.aspx
All the best
Doug
ps...never understood why Celestron persist with that little 6x30 finder on their flagship OTAs like the 9.25"!!!
03-11-2007, 12:28 PM
Astrophotographer
Join Date: Oct 2007
Location: Adelaide, Australia
Posts: 405
I am so stocked, because that's exactly the kind of feedback I am looking for from people.
I have looked at those links briefly but its exactly the kind of info I was after.
Thanks again Doug!
03-11-2007, 12:29 PM
Registered User
Join Date: Aug 2005
Location: Hahndorf, South Australia
Posts: 4,373
Quote:
Originally Posted by
wysiwyg
I am so stocked, because that's exactly the kind of feedback I am looking for from people.
I have looked at those links briefly but its exactly the kind of info I was after.
Thanks again Doug!
my pleasure
Doug
03-11-2007, 03:17 PM
Astrophotographer
Join Date: Oct 2007
Location: Adelaide, Australia
Posts: 405
Well I had a go at adjusting the clipped histogram, there is quite a bit of difference I was not expecting that.
Here are the two images, clipped and non-clipped, judge for your self.
Thanks again Doug.
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i bet the stars hurt your eyes out there!
