Jim Thommes
Carpal Tunnel
Reged: 09/20/04
Posts: 1673
Loc: San DiegoCA USA
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Here is an image of Sharpless 129. I do not take any credit for the name - I saw it on the internet - really. But in looking at the image, you can imagine something flying. Image is at:
http://www.jthommes.com/Astro/SH2-129.htm
Optic - Sigma EX APO 150 mm DSLR Lens at f/4
Camera - Artemis285, Astronomik HA and RGB filters
Mount - Celestron CG5 with Goto controls
Guiding - 180 mm FL home made guide scope, DSI Pro, PHD Guiding
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Jim Thommes
http://www.jthommes.com/Astro/
C8
Megrez II APO
G11/Gemini
Artemis285 Camera
Canon 350D
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john gretchen
professor emeritus
Reged: 02/02/08
Posts: 599
Loc: 28° 24' 30" N 96° 37' 53" W
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nice work Jim
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John N. Gretchen III
Astro-Tech 8" f/8 Ritchey-Chrétien astrograph
Intes-Micro M73 (7" F3 custom astrograph)
Astro-Tech 80mm f/7 ED triplet
Celestron CI-700 Mount w/Gemini
QHY8 ST2000XM
http://www.tisd.net/~jng3/observatory
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bill w
Postmaster
Reged: 03/26/05
Posts: 6597
Loc: southern california
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great shot jim
don't remember seeing you shoot with that lense before
is it new?
can it go to f/2.8?
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-bill w
nexstar 8 GPS
canon 300D, Toucam Pro II
SXV-H9C, H9, SX Exview autoguider, SX-AO
FS 102 (OLV), FS60 CSV, 8" LX200R, G 11
http://astro.whwiii.net/
image processing monitor calibrated to just differentiate darkest boxes:
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Dan G
Carpal Tunnel
Reged: 06/27/06
Posts: 1761
Loc: Minisink, NY, USA
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Jim -
Great shot. I can definitely see the bat. Happy Halloween!
Dan in NY
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TV 76, Vixen VC200L, TV NP-127is
EM-200, NJP
ML 8300, ST-402
Tranquility Base Observatory aka "The Shed" by non-tranquil members of the house
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atalas
Carpal Tunnel
Reged: 02/21/05
Posts: 1898
Loc: Sydney,Australia
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Hi and great shot Jim! couple of questions...did you use deconvolution? and, how are you using your Ha filter with the camera lens?
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www.atalas.net
Cheers
Louie
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David Pavlich
Postmaster
Reged: 05/18/05
Posts: 8687
Loc: Mandeville, LA USA 30.22 X 90....
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Another really nice image, Jim!
David
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Proud Member; PAS NOLA,
"If we knew what we were doing, it wouldn't be called research..."
A. Einstein
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seeker372011
scholastic sledgehammer
Reged: 03/05/04
Posts: 916
Loc: Sydney , Australia
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lovely shot -not a commonly imaged object at all.. yes can see the bat or flying fox all right
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ED 80 on a CG5 mount;ED 127 on EQ6; QHY8, 20 x 80 LW Obies;PST;10 inch GSO dob
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Jim Thommes
Carpal Tunnel
Reged: 09/20/04
Posts: 1673
Loc: San DiegoCA USA
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Quote:
Hi and great shot Jim! couple of questions...did you use deconvolution? and, how are you using your Ha filter with the camera lens?
No, I didn't use deconvolution. I did use some selective sharpening (unsharp mask). Basically it is a duplicate layer with kind of strong sharpening. Stars and background are masked out and the nebular region's mask is painted to "reveal" sharpened features.
Regarding the camera lens, I have a pretty short back focus camera and a thin filter wheel (Astronomik filter cells are thin). I home made a Canon lens to T-thread adapter - very short - 11 mm. So this setup allows me to come to focus with the lens with filter wheel attached. Makes the Ha and RGBs very convenient.
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Jim Thommes
http://www.jthommes.com/Astro/
C8
Megrez II APO
G11/Gemini
Artemis285 Camera
Canon 350D
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Jim Thommes
Carpal Tunnel
Reged: 09/20/04
Posts: 1673
Loc: San DiegoCA USA
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Quote:
great shot jim
don't remember seeing you shoot with that lense before
is it new?
can it go to f/2.8?
I don't shoot much with it on the CCD but I have done some work with the DSLR:
http://www.jthommes.com/Astro/DSLR/IC4601Region.htm
http://www.jthommes.com/Astro/DSLR/VulpeculaCorner.htm
http://www.jthommes.com/Astro/DSLR/M16M17Region.htm
http://www.jthommes.com/Astro/DSLR/Rho_Ophi.htm
I did take data on the M7 region with this lens and CCD, but I did not like the data and never processed it. So I guess this is the first processed image with this lens and CCD.
It does make f/2.8 (max aperture for this lens). It would shoot at f/2.8 with the CCD as the lens is not powered from the CCD - so it would be wide open. Instead, I use a physical lens mask that approcimates f/4 on the front of the lens.
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Jim Thommes
http://www.jthommes.com/Astro/
C8
Megrez II APO
G11/Gemini
Artemis285 Camera
Canon 350D
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Nocturnal
Pooh-Bah
Reged: 09/14/05
Posts: 1033
Loc: CT, USA
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Looks good Jim, nice object. Will have to add it to my list.
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Best,
Sander
C11-HyperStar on Atlas EQ-Q driven by EQMOD
William Optics M110 With FR-III/TRF-2008
DS2090 guide scope
QHY-8, DSI-Pro and DSI cameras
watec 802h video camera with KIWI OSD
Astro stuff: http://www.tungstentech.com
My Astro Photos
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davidc
sage
Reged: 11/24/05
Posts: 264
Loc: Mesa, Arizona
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Great job on that one Jim, I can see that image resembling a bat carrying my Ex-mother in law away.
David
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13.1 Inch-F/4.8 Royce Conical Homebuilt Dob
8 Inch-F/5 Orion Dob
4 Inch Celestron Reflector Camping Scope
25mm Meade W/A Ep
13mm Orion Stratus Ep
8mm Orion Stratus Ep
2X Meade Barlow
Meade Cheshire/Sight Tube
East Valley Astronomy Club
Searching For Rainbows In The Dark
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DanB
scholastic sledgehammer
Reged: 12/05/07
Posts: 837
Loc: Pacific Northwest
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Nice work Jim, your stuff is always impressive! The stars and colors are excellent.
Dan
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AT8RC astrograph
AT80ED refractor (guidescope)
10" Meade f4.5 reflector
8" Meade f6 reflector
EQ6 Skywatcher/Synscan
Meade DSI (Guide camera)
CCD Labs Q453 (Main imager)
Nebulosity 2
PHD guiding
"In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual".
- Galileo Galile -
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BrianFitz
Carpal Tunnel
Reged: 07/17/08
Posts: 1708
Loc: Northern California
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Jim you've really stepped it up over the past year --- your results are top!!
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Fitz
Meade LX200R 10" F/10
Meade 152ED APO
Stellarvue Raptor 80ED
WO EP's / Televue diagonals
QHY8 / QHY5 / Philips SPC 900
20X80 Celestron / 7X50 Meade Binos
“Lots of "Dreams”
“The Skillful Illusionist Makes the Best Image"
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Jim Thommes
Carpal Tunnel
Reged: 09/20/04
Posts: 1673
Loc: San DiegoCA USA
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Thanks for all of the comments folks.
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Jim Thommes
http://www.jthommes.com/Astro/
C8
Megrez II APO
G11/Gemini
Artemis285 Camera
Canon 350D
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Rick J
Pooh-Bah
Reged: 03/01/08
Posts: 1128
Loc: Mantrap Lake, MN
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Great image of a tough object. It covers a lot of sky.
I tried 20 years ago with hypered 2415 film, a 135mm f/3.5 lens and a Lumicon sort of H alpha filter. You could tell it was there but that's about it. Never tried again. I've thought about trying to adapt camera lenses to my 11K but never got beyond that. Going DSLR in winter might work if they function at our -35C and below temperatures. Doubt the battery would like that.
Rick
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Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3459
Loc: Santa Cruz Mountains , CA
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That lens worked very well , great choice of a target and nice job with the processing.
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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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Jim Thommes
Carpal Tunnel
Reged: 09/20/04
Posts: 1673
Loc: San DiegoCA USA
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Rick, Eric
Thanks for the comment.
Rick, I think the 11K would work well - particularly if the lens can do well on covering the chip at an f/4 or less. The image scale doesn't require pinpoint tracking accuracy and if you get some nice transparent skies, the outcome could be dramatic. Its a pretty area of the sky.
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Jim Thommes
http://www.jthommes.com/Astro/
C8
Megrez II APO
G11/Gemini
Artemis285 Camera
Canon 350D
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