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anguslau
member
Reged: 11/29/05
Posts: 13
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This is my favorite object (region) and I have tried imaging it using different focal lengths and framing. So far, I found 300mm being the best compromise between FOV and resolution for this region. This is an image I took during my recent trip to Australia this summer. I know this is a bit off season, I thought it may still be of interest to some.  Comments and suggestions are most welcome! 
Apart from contrast and resolution, I found the most serious drawback for long camera lenses compared to a good scope is that they tend to produce ugly looking flares around bright stars. Here I have tried to mask them using software produced star spikes, with some success I think. 
Technical details:
EF300mm f/2.8, EM-11, modified 5D,
iso1600, 7 x 300s exposures (total 35 mins)
autoguided using SBIG STV with eFinder
stacked using DSS, processed using PS CS4
Synthetic star spikes created using StarSpikes Pro
The Antares and Rho Ophiuchi region
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Falcon-
sage
Reged: 09/11/09
Posts: 240
Loc: Gambier Island, BC, Canada
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Quote:
I know this is a bit off season, I thought it may still be of interest to some.
Yes, yes that interests!  Really cool shot.
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Tasco 11TE-5 'Lunagrosso': 4.5" Newtonian, 900mm f/7.9
Meade DS-2114S: 4.5" Newtonian, 1000mm f/8.8
Galileoscope: 50mm Achromatic Refractor, 500mm f/10
Tasco EQ-2-like mount w/ clock drive
Celestron CG-5GT mount
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nickatnight
Carpal Tunnel
Reged: 04/14/08
Posts: 1751
Loc: Santa Clarita, CA (LA Suburbs)
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Absolutely stunning. I could feel the cones and rods in my eyeballs dancing!
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nickatnight
Celestron CPC 9.25" GPS
Lumicon 2" LumiBrite Diagonal
Meade s5000 18mm UWA, Meade 6.7mm UWA,
Parks G.S-5 10mm, Celestrom 40mm Plossl
Parks 2x Barlow, Meade Tele-Extender
Celestron f6.3 Focal Reducer
Lumicon UHC Filter and Deep Sky Filter
Canon Rebel XTi (prime)
Canon Powershot G9 (afocal)
Canon EOS T-Ring and Parks T-Adapter
Lumicon Univ DigiCam Adapter
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SGT500
Carpal Tunnel
Reged: 10/03/06
Posts: 2921
Loc: Ny
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 sweet shot!
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-Sal
AstroTech Ritchey Chretien 8"
Williams Optics Zenithstar 80
Orion Atlas Eq-G
Hap Griffin Modified Canon Eos Xs (1000D)
My Astrophotography Gallery
My Sketch Gallery
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Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3395
Loc: Santa Cruz Mountains , CA
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I missed my chance at this one from my location so im very jealous , well done with lots of dusty details.
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Erik
Orion Atlas Self Hypertuned (EQMOD)
Orion ED 80
Williams Optics VII reducer
Celestron 8" SCT
Orion Starshoot Autoguider
PHD guide
Canon 400D Hap Griffin Mod w/Baader filter
Astronomik clip-in LP filter and 12nm Ha
Stilleto CVF and Bahtinov mask
Tamron 75-300mm&28-80mm lenses
NexImage webcam
http://www.flickr.com/photos/31986095@N05/
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Dave M
Post Laureate
Reged: 08/03/04
Posts: 4922
Loc: N.E Ohio
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Thats a Beauty, Great! shot.. 
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Dave
Meade 16" F4.5 EQ Starfinder
Meade 10" SCT / Losmandy G11
Tak FSQ106ED
Canon 20D
SBig ST-4
http://www.spacew.com/gallery/image006006.html
Ps 19:1 The Heavens Declare the Glory of GOD.
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LarsZ
super member
Reged: 01/12/08
Posts: 113
Loc: Sweden
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Like a rainbow cloud. Very beautiful.
/Lars
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Rebel XSi, IDAS LPS, CGE 9.25, Orion SSAG, Starblast 4.5
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Agnotio
sage
Reged: 08/29/08
Posts: 228
Loc: Ottawa, Canada
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Quote:
(total 35 mins)
Dang those Australians and their mint clear skies.
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Sky-Watcher Equinox 80ED
EQ6 Pro with EQMOD
Canon 450D
Sky-Watcher 10" f/4.7 Dob
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