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21-05-2012, 08:23 AM
Registered User
Join Date: Jul 2011
Location: Brisbane
Posts: 1,865
Wide fields: Coalsack, Tail of Scorpius, Rho Ophiuchi
Hi everyone,
Hooray - clear skies and cool weather in Leyburn last weekend meant that I could finally capture some of the images I've been after for months.
(Click on the links for higher quality versions.)
1.
Coalsack and Dark Doodad Nebulae : 20x 90 sec (total 30 mins), 135 mm, f/4, ISO 3200.
2.
Tail of Scorpius : 18x 180 sec (total 54 mins), 135 mm, f/4, ISO 1600.
3.
Rho Ophiuchi : 35x (31 stacked) 180 sec (total 105 mins), 135 mm, f/4, ISO 1600.
4.
Self portrait under the "emu" : 1x 30 sec 14 mm f/2.8 ISO 6400 (fixed tripod).
Images 1-3 were shot with a Canon 5DmkII and 135 mm f/2L lens on an Astrotrac. Thanks for looking!
Cheers,
Dave
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21-05-2012, 08:31 AM
ze frogginator
Join Date: Oct 2007
Location: Sydney
Posts: 22,071
Absolutely gorgeous. Loved them all!
21-05-2012, 08:33 AM
Sir Post a Lot!
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,789
Amazing images - the first 3 are stunning.
21-05-2012, 09:57 AM
Bust Duster
Join Date: Nov 2008
Location: Brisbane, Australia
Posts: 4,846
Very nice set. The astrotrac seems to do well at that focal length.
21-05-2012, 10:24 AM
PI cult recruiter
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Beautiful shots, Dave! You had a very productive night.
Cheers,
Rick.
21-05-2012, 04:16 PM
Really just a beginner
Join Date: Jun 2009
Location: Brisbane
Posts: 3,041
These are incredible Dave!
I hope I can get my widefield setup humming like yours.
DT
21-05-2012, 04:31 PM
Registered User
Join Date: Nov 2006
Location: Canberra, Australia
Posts: 1,344
Great work. I particularly like the Rho Ophiuchi image.
well done
Martin
21-05-2012, 04:32 PM
Like to learn
Join Date: Jul 2007
Location: melbourne
Posts: 4,835
Wonderful stuff ! The site looks nice & dark. Well done,
21-05-2012, 04:49 PM
JHT
Join Date: Jun 2007
Location: Penwortham
Posts: 3,039
Hi Dave,
Absolutely stunning!!!
These images are so sharp and full of detail
Cheers,
Justin.
21-05-2012, 05:26 PM
Registered User
Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
Stunning colour and clarity
I take it the 5D is not modified? I'm surprised at the colour you have. I really must sort out getting the most colour from my DSLR shots, I'm sure there must be more in there than I squeeze out
21-05-2012, 05:37 PM
Registered User
Join Date: Feb 2005
Location: Monto
Posts: 16,741
Oh wow wow wow
21-05-2012, 08:09 PM
Registered User
Join Date: Jul 2011
Location: Brisbane
Posts: 1,865
Thanks everyone!
I think I'm slowly-but-surely starting to figure out how to make the wide field DSO images pop...
Troy - the Canon 135 mm f/2L lens happens to be one of my favourites.
Rick - thanks! I hope you had some success yourself?
David - I'm looking forward to seeing what magic the D800 can do!
Roger - Yep, it's a stock unmodified camera. Here's one of the Rho Ophiuchi subs completely unedited except for resizing - the dark nebulosity and colours were easily visible on the back of the camera.
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21-05-2012, 08:15 PM
PI cult recruiter
Join Date: Apr 2010
Location: Brisbane
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Quote:
Originally Posted by
naskies
Rick - thanks! I hope you had some success yourself?
I did thanks, Dave, but I used a 2000mm f/8 lens
I'll processing for a few more evenings to do justice to the data, I think.
21-05-2012, 09:17 PM
Registered User
Join Date: Oct 2008
Location: Perth, Western Australia
Posts: 717
Wow David - sweet collection there!
Cheers
Bill
21-05-2012, 11:39 PM
Registered User
Join Date: Jan 2006
Location: E.P. S.A.
Posts: 4,963
Fantastic views Dave. I really need to brush up on my processing. Wow, thanks for the views. All the best.
22-05-2012, 01:47 AM
Registered User
Join Date: Oct 2011
Location: U.S.A
Posts: 755
Outstanding images, all of them. Great contrast and color.
j
22-05-2012, 02:30 AM
Old Man Yells at Cloud
Join Date: Jan 2007
Location: Rockingham WA
Posts: 3,435
WOW Dave, the Rho Ophiuchi shot is stunning, would love to get a shot like that!
I am confused tho, didn't you sell the Astrotrac a few months back?
22-05-2012, 03:28 AM
Registered User
Join Date: Feb 2006
Location: Sydney
Posts: 18,032
They are superb images.
Greg.
22-05-2012, 05:27 AM
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Location: Holbrook, NSW
Posts: 1,230
WOW. My jaw just hit the floor. Stunning images Dave. Congratulations.
22-05-2012, 11:08 AM
Registered User
Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
Quote:
Originally Posted by
naskies
Roger - Yep, it's a stock unmodified camera. Here's one of the Rho Ophiuchi subs completely unedited except for resizing - the dark nebulosity and colours were easily visible on the back of the camera.
It's the colour I'm surprised at .. I think you have very good processing skills, to be able to bring out the colour without making it look too higher contrast or too over processed
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