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Old 21-05-2012, 09:23 AM
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naskies (Dave)
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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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Old 21-05-2012, 09:31 AM
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multiweb (Marc)
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Absolutely gorgeous. Loved them all!
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  #3  
Old 21-05-2012, 09:33 AM
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iceman (Mike)
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Amazing images - the first 3 are stunning.
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Old 21-05-2012, 10:57 AM
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troypiggo (Troy)
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Very nice set. The astrotrac seems to do well at that focal length.
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Old 21-05-2012, 11:24 AM
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RickS (Rick)
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Beautiful shots, Dave! You had a very productive night.

Cheers,
Rick.
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Old 21-05-2012, 05:16 PM
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DavidTrap (David)
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These are incredible Dave!

I hope I can get my widefield setup humming like yours.

DT
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Old 21-05-2012, 05:31 PM
Martin Pugh
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Great work. I particularly like the Rho Ophiuchi image.

well done
Martin
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Old 21-05-2012, 05:32 PM
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Wonderful stuff ! The site looks nice & dark. Well done,
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Old 21-05-2012, 05:49 PM
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tilbrook@rbe.ne (Justin Tilbrook)
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Hi Dave,

Absolutely stunning!!!

These images are so sharp and full of detail

Cheers,

Justin.
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Old 21-05-2012, 06:26 PM
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rogerg (Roger)
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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
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Old 21-05-2012, 06:37 PM
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Oh wow wow wow
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Old 21-05-2012, 09:09 PM
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naskies (Dave)
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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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Old 21-05-2012, 09:15 PM
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Quote:
Originally Posted by naskies View Post
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.
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Old 21-05-2012, 10:17 PM
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Wow David - sweet collection there!

Cheers
Bill
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Old 22-05-2012, 12:39 AM
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Fantastic views Dave. I really need to brush up on my processing. Wow, thanks for the views. All the best.
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Old 22-05-2012, 02:47 AM
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Outstanding images, all of them. Great contrast and color.

j
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Old 22-05-2012, 03:30 AM
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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?
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Old 22-05-2012, 04:28 AM
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They are superb images.

Greg.
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Old 22-05-2012, 06:27 AM
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CapturingTheNight (Greg)
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WOW. My jaw just hit the floor. Stunning images Dave. Congratulations.
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Old 22-05-2012, 12:08 PM
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Quote:
Originally Posted by naskies View Post
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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