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http://coatesastrophotography.com/p840667703/h4a933a82#h4a933a82
This is a combined stack from 4 hours and 7 min of RGB data taken from a modded Canon T1i from last year and 2 hours of Ha taken with a QSI 683ws from this year registered and cropped in RegiStar.
NGC 281 the Pac Man nebula
RGB data captured on October 29 and 31, 2011
H-Alpha data captured on November 6, 2012
Ocala, FL
RGB data (Canon T1i): Combination of 60 sec, 120 sec and 180 sec. exposure stacked in DSS for a total of 4 hour 7 min.
H-Alpha data (QSI 683ws): 15 minute exposure stacked in DSS for a total of 2 hours.
PS CS5
Orion 80mm EON
Orion 50mm guide scope with SSAG
Canon T1i (modified)
QSI 683ws
Losmandy G11 with Gemini II
Hutech IDAS Light Pollution Suppression (LPS) Filter
Baader 6nm Ha filter
Images from T1i and QSI were combined using RegiStar

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Albums: Nebula

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Comment by Steve Coates on December 30, 2012 at 11:48am
Comment by Trevor Jones on November 8, 2012 at 10:34am

Beautiful contrast and sharp detail.

Comment by Marc Basti on November 7, 2012 at 5:25pm

Gotta like the Ha "boost", what a difference in detail. Nice work. Marc PS looks like R-Star is paying for itself, cool

Comment by Steve Coates on November 7, 2012 at 3:09pm

Thanks Eric and Russ.
Here is the RGB taken from a DSLR:

...and the Ha taken from a CCD camera:

...and now both combined:

Comment by Russ Ruggles on November 7, 2012 at 2:30pm

Very nice Steve. Have you done a before and after on this? RGB, Ha and then this combined image.

Comment by Eric Hughes on November 7, 2012 at 1:20pm

Man I can't wait to know enough so I can get good enough to shoot shots like this.

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