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Old 02-12-2008, 05:56 PM
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multiweb (Marc)
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Join Date: Oct 2007
Location: Sydney
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Quote:
Originally Posted by Astrod00d View Post
Great image there Marc, lots of detail and good blending of the Ha. The full resolution version seems to have detail to the core, just a bit clipped, perhaps you could try reducing the brightness of the core in PS and see what you get... or, maybe you need to go back to Wiruna and get some more data. Some 300s subs should be about right...

Cheers,

Rob
Thanks Rob. Yeah 15min is a bit too much for the core. I already went as low as I could with the shadow highlight tool in PS before turning grey. I won't say it .... but I'm thinking it Good excuse to go back on boxing day.

Quote:
Originally Posted by gregbradley View Post
A stunner.

One trick with Ha blending ( one of a few I have developed) is to hammer the background noise a bit before blending.

For example, you assign Ha to a red channel.

Have a look at it now it is red and you'll see quite a bit of general red noisy background as Ha must be fairly dominate in thin amounts in some of these objects.

I run Noise Ninja on it and then move the black point across a bit to knock out this noisy red background to give a cleaner blend of the Ha.
You could alternatively run the noise filter in PS then push the black point over to suit to clean it up a bit.

This will further hide your already almost unnoticeable transition point.

Greg.
Cool. Glad you liked it. Thanks for the tip Greg. I'll have to try that. First time I blended Ha in PS. Later I noticed I could do it CCD Stack as well and place it as a luminance channel but I had no control over the blending. I'll play with it anyway.
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