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Old 08-07-2011, 11:18 PM
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dugnsuz (Doug)
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Join Date: Aug 2005
Location: Hahndorf, South Australia
Posts: 4,363
Arrow Cat's Paw Ha and HaRGB @ 400mm

Hello again...
A new image snatched between cloud and rain, the Cat's Paw Nebula (NGC 6334) in glorious Ha-o-vision.

Astro 40D (-21ºC)
Canon 400mm f5.6L @ f5.6 + Astronomik 12nm Ha EOS clip filter
10x20min subs, iso1600

High Res (Ha)...
http://s327.photobucket.com/albums/k...rent=22aaa.jpg

EDIT...
10.7.11

Added 170mins of RGB colour data taken with same camera/lens.
Wasn't too happy with the RGB data as I had stopped down the lens with an external aperture mask in order to tighten up detail/stars - resulting subs were a bit dim and lacking punch and I feel this HaRGB blend suffers a bit for that - may revisit this when weather and moon allows.

High Res (HaRGB)...
http://s327.photobucket.com/albums/k...ent=22aaaa.jpg

Cheers for looking

Doug
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Last edited by dugnsuz; 10-07-2011 at 09:30 AM.
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