slenarz
super member
Reged: 09/11/08
Posts: 151
Loc: Dover, Ohio
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Hello everyone,
Here is an image taken on October 26, 2009 of IC 59 and IC 63 in Cassiopeia.
The particulars are:
AT8RC with WO 0.8 FF/FR
Rebel 1000D Modified Camera
Astronomik 13nm Ha Filter
EqG Mount
18 subs @ 10 minutes Each @ ISO 1600
15 Darks/No flats
Taken in light polluted Dover, Ohio
Lights at 55 yards in our town (my editorial comment on light pollution)
Image can be seen here:
http://i639.photobucket.com/albums/uu115/slenarz/IC59and63.jpg
Comments or suggestions?
Thanks for viewing, Steve
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8" ATRC
16" Dob
120mm Refractor
80mm William Optics Refractor
80mm Orion ST
10" Meade Schmidt-Newtonian
100mm Binoculars
Atlas Eq-G Mount
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s58y
Postmaster
Reged: 12/12/04
Posts: 5494
Loc: Eastern NY
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Nice image -- you don't see this one too often.
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Hutech 30D, SBIG ST-402 autoguider
SV80S, TV102iis
Old camera lenses: 800mm f/5.6, 180mm f/3.4
AP900, Barndoor tracker
http://www.pbase.com/s58y
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Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3395
Loc: Santa Cruz Mountains , CA
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Good shot Steve
Nice to be able to image with the moon out , Ha filters are great.
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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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slenarz
super member
Reged: 09/11/08
Posts: 151
Loc: Dover, Ohio
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Erik,
Thanks for the comments. I'll try to make sure I have some flats next. Not guaranteed, but I'll try. The vignetting is caused I think by the adapter I'm using with the focal reducer/field flattener. Steve
--------------------
8" ATRC
16" Dob
120mm Refractor
80mm William Optics Refractor
80mm Orion ST
10" Meade Schmidt-Newtonian
100mm Binoculars
Atlas Eq-G Mount
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Nils_Lars
Post Laureate
Reged: 01/04/08
Posts: 3395
Loc: Santa Cruz Mountains , CA
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I actually stoped using them because I was getting weird issues from them so I just use GradientX and make sure my sensor is clean each time I go out.
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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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slenarz
super member
Reged: 09/11/08
Posts: 151
Loc: Dover, Ohio
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Erik,
I have photoshop 5.5. Is that compatible with GradientX? Thanks for letting me know. Steve
--------------------
8" ATRC
16" Dob
120mm Refractor
80mm William Optics Refractor
80mm Orion ST
10" Meade Schmidt-Newtonian
100mm Binoculars
Atlas Eq-G Mount
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Tonk
Post Laureate
Reged: 08/19/04
Posts: 4350
Loc: Leeds, UK, 54N
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Quote:
because I was getting weird issues from them <flats> so I just use GradientX
You really should avoid using GradientX for this correction. Flats require a division operation to cater for the fact that vignetting is a light transmission effect, while GradientX only applies a subtractive correction. The result may look flat (for the background), but the brightness corrections to the stars are entirely missing. If you read the Gradient help, Russel points out that GradientX is not the tool to use for correcting vignetting. You really need to work on getting good flats
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Televue 85, GM-8/Gemini, Canon 40D (unmodded), Canon 450D (modded w/Astronomiks clip-ins - UV/IR, OWB)
Coronado SM60/BF10, Baader Herschel Wedge
Leeds Sky Clock Ripon Sky Clock
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Tonk
Post Laureate
Reged: 08/19/04
Posts: 4350
Loc: Leeds, UK, 54N
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Quote:
I have photoshop 5.5. Is that compatible with GradientX?
See here http://www.rc-astro.com/resources/GradientXTerminator/manual.html
The answer is yes (boy you have a very old version!)
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Televue 85, GM-8/Gemini, Canon 40D (unmodded), Canon 450D (modded w/Astronomiks clip-ins - UV/IR, OWB)
Coronado SM60/BF10, Baader Herschel Wedge
Leeds Sky Clock Ripon Sky Clock
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waassaabee
Carpal Tunnel
Reged: 11/26/07
Posts: 2692
Loc: Central California Coast
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Very nice image Steve!! Now I have filter envy...
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Gary
34N 120W
-My kingdom for blue squares!-
WO Megrez 90FD/TV 0.8x FR/FF
AT8RC
mini Borg 50/Q-Guide/PHD
CGEM
Canon 350D Hap Griffin Baader mod - o.o
My Friend Flickr
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slenarz
super member
Reged: 09/11/08
Posts: 151
Loc: Dover, Ohio
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Tonk,
Thanks for the info. I would love to have a new version of the photoshop, but I just can't justify spending that much on the program. sorry. Steve
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8" ATRC
16" Dob
120mm Refractor
80mm William Optics Refractor
80mm Orion ST
10" Meade Schmidt-Newtonian
100mm Binoculars
Atlas Eq-G Mount
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Dave M
Post Laureate
Reged: 08/03/04
Posts: 4922
Loc: N.E Ohio
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Nice shot Steve, look like you might have cought a meteor
about 2/3rds down from the top ?, looks like something horizontal going across the image.
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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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slenarz
super member
Reged: 09/11/08
Posts: 151
Loc: Dover, Ohio
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Gary,
Thanks. I've got to add flats next time. The filter is great and has added a whole new field for astrophotography when the moon is up and conditions in Ohio render it impossible to go out into the country to shoot-too cold. Steve
--------------------
8" ATRC
16" Dob
120mm Refractor
80mm William Optics Refractor
80mm Orion ST
10" Meade Schmidt-Newtonian
100mm Binoculars
Atlas Eq-G Mount
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SGT500
Carpal Tunnel
Reged: 10/03/06
Posts: 2921
Loc: Ny
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Great shot!
are you considering adding RGB to this Ha? it would be a great image. (Not that its not great already) 
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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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slenarz
super member
Reged: 09/11/08
Posts: 151
Loc: Dover, Ohio
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Sal,
No, I don't have the rgb capability with the filters. My buddy, Mike Unsold, let me borrow the filter. I will probably purchase it from him. It does open up a whole avenue of shooting in my suburban area with its great light pollution. For a small community of 12,000, we have a lot of light pollution. Steve
--------------------
8" ATRC
16" Dob
120mm Refractor
80mm William Optics Refractor
80mm Orion ST
10" Meade Schmidt-Newtonian
100mm Binoculars
Atlas Eq-G Mount
|
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